News: Mikroteknologi och nanovetenskaphttp://www.chalmers.se/sv/nyheterNews related to Chalmers University of TechnologyMon, 17 Jan 2022 22:43:33 +0100http://www.chalmers.se/sv/nyheterhttps://www.chalmers.se/en/areas-of-advance/materials/news/Pages/Materials-for-Tomorrow-2021.aspxhttps://www.chalmers.se/en/areas-of-advance/materials/news/Pages/Materials-for-Tomorrow-2021.aspxWatch the seminar – Materials for Tomorrow 2021<p><b>The topic of 2021 Materials for Tomorrow was &quot;Additive Manufacturing – From academic challenges to industrial practice&quot;. The event toke place online, 17 November, with several internationally recognized speakers. The seminar was devoted to the broad diversity of additive manufacturing, across materials and applications. The lectures covered the additive manufacturing of metals that are printed by laser or electron beam (e.g. for implants and aircraft components), the printing of tissue from bio inks, as well as the printing of thermoplastic polymers.​</b></p><div><strong>Click on the titles to watch all the presentations:</strong></div> <div><br /></div> <div><ul><li><span style="background-color:initial"><span style="font-weight:700"><a href="https://youtu.be/IRYEoZODNF4"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Powder Based Metal Additive Manufacturing: possibilities and challenges</a></span><br /></span><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFT_Eduard_Chalmers.jpg" alt="Eduard Hryha" class="chalmersPosition-FloatRight" style="margin:5px" />P<span style="background-color:initial">rofessor </span><a href="/en/staff/Pages/hryha.aspx"><span style="background-color:initial">E</span><span style="background-color:initial">duard Hryha</span></a><span style="background-color:initial">,</span><span style="background-color:initial"> division of Materials and manufacturing, Industrial and materials science, Chalmers Director of CAM2: Centre for Additive Manufacture - Metal.<br /><span style="font-weight:700"><br />Abstract: </span>Significant development in the area of powder based metal additive manufacturing during last decade resulted in significant expansion of the material portfolio, development of robust  Additative Manufacturing, AM , processes for number of materials and hence resulting in successful industrial application of the technology for the high-value components. Expansion of portfolio of AM materials as well as understanding the properties of AM materials is the must to assure broader industrial implementation of the technology. Hence, state-of-the-art and challenges of the powder-based metal AM, required to pave the way for the broader industrial utilization of metal AM, are discussed. <br /> <br /></span></li> <li><span style="font-weight:700;background-color:initial"><a href="https://youtu.be/oXJRvHZldAw"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Industrialization of AM at Alfa Laval</a><br /></span><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFT_Anna_Wenemark.jpg" alt="Anna Wenemark" class="chalmersPosition-FloatRight" style="margin:5px" />Anna Wenemark, Technology Office Manager, Alfa Laval, and Chairman of the board of CAM2.<br /><br />This talk will share Alfa Laval’s journey of industrialization of AM and critical success factors going forward.</li></ul></div> <div><br /></div> <div><br /></div> <div><ul><li><a href="https://youtu.be/jWbuZs24WE4"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /><span style="font-weight:700">Operando synchrotron characterization of temperature and phase evolution during </span><span style="background-color:initial"><span style="font-weight:700">laser</span></span><span style="background-color:initial"><span style="font-weight:700"> powder bed fusion of Ti6Al4V</span></span></a><span style="background-color:initial"><span style="font-weight:700"><br /></span></span><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFTvanswygenhoven_helena_2.png" alt="Helena Van Swygenhoven-Moens" class="chalmersPosition-FloatRight" style="margin:5px" />Professor <a href="https://www.psi.ch/en/lsc/people/helena-moens-van-swygenhoven">H<span style="background-color:initial">elena </span><span style="background-color:initial">Van Swygenhoven-Moens,</span></a><span style="background-color:initial"> </span>Paul Scherrer Institute &amp; École Polytechnique Fédérale de Lausanne Switzerland<br /><span style="font-weight:700"><br />Abstract: </span>Thanks to the high brilliance and the fast detectors available at synchrotrons, operando diffraction experiments during L-PBF have become possible.<br />Two types of operando experiments are presented. The first is performed while printing a 3D Ti6Al4V during xray diffraction. It allows to track with a time resolution of 50µs the dynamics of the α and β phases during fast heating and solidification, providing the cooling rates of each phase and the duration the β phase exists [Hocine et al, Mat Today 34(2020)30; Add Manuf 34(2020)101194 ; Add Manuf 37 (2021)101747]. The second is an operando experiment carried out on a thin Ti6AlV wall while remelting the surface. It allows quantification of the thermal cycles experienced by the material along the building direction [Ming et al, submitted]. Both experiments were carried out at the MicroXAS beamline of the Swiss synchrotron.<span style="background-color:initial">​</span></li></ul></div> <div><br /></div> <div><ul><li><span style="font-weight:700"><a href="https://youtu.be/0UzY7B9Ql_A"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />The unique material capabilities of Electron Beam Melting (EBM)</a><br /></span><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFT_Joakim-1.jpg" alt="Joakim Åhlgård" class="chalmersPosition-FloatRight" style="margin:5px" />Jo<span style="background-color:initial">akim</span><span style="background-color:initial"> Ålgårdh</span><span style="background-color:initial">, External Research Lead, GE Additive|EBM.<br /></span><span style="font-weight:700;background-color:initial">Abstract</span><span style="background-color:initial">: </span><span style="background-color:initial">W</span><span style="background-color:initial">i</span><span style="background-color:initial">th the use of a high intensity electron beam as an energy source, the additive manufacturing technology Electron Beam Melting (EBM, or EB-PBF) features unique capabilities on materials processability. This talk will give an overview of the features and technologies present in the EBM process; a deep dive in what makes them exceptional, and how they affect and improve the processing and manufacturing of advanced materials. Examples of current materials and their applications will be presented to give an insight to where the technology is used today and why these materials and applications exist. Further, the material possibilities in the EBM process will be discovered to show the unique material capabilities in the process. <br /><br /></span></li> <li><span style="font-weight:700"><a href="https://youtu.be/SAb5Xo3Jss0"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Additive manufacturing and metal-based implants</a></span><br /><a href="https://www.gu.se/en/about/find-staff/anderspalmquist"><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFTanders_palmqvist.jpg" alt="Anders Palmquist" class="chalmersPosition-FloatRight" style="margin:5px" />A<span style="background-color:initial">nders Palmquist</span>​</a><span style="background-color:initial">, </span><span style="background-color:initial">D</span><span style="background-color:initial">epartment of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden.<br /></span><span style="font-weight:700;background-color:initial">Abstract:</span><span style="background-color:initial"> </span><span style="background-color:initial">A</span><span style="background-color:initial">dditive manufacturing is becoming an e</span><span style="background-color:initial">stablished fabrication technique within the field of biomaterials, where patient specific implants with integrated porous structures could be built to fit the patient in various clinical applications. Powder based techniques such as SLM and EBM are techniques for fabrication of metal implant for bone anchorage and repair, where preclinical studies show a high potential of as-produced implants. The healing potential could be boosted further in combination with bioactive ceramic coatings. Recent and on-going studies will be presented, ranging from material to clinical applications.</span></li></ul></div> <div><br /></div> <div><ul><li><span style="font-weight:700"><a href="https://youtu.be/fLasnAD8vZ0"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Materials of Yesterday and LSAM</a><br /></span><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFT_jan_johansson.jpg" alt="Jan Johansson RISE" class="chalmersPosition-FloatRight" style="margin:5px" />Ja<span style="background-color:initial">n Johansson, </span><span style="background-color:initial">Re</span><span style="background-color:initial">searcher at </span><span style="background-color:initial">R</span><span style="background-color:initial">ISE Research Institutes of Sweden, Division: </span><span style="background-color:initial">Additive Manufacturing<br /></span><span style="font-weight:700">Abstract: </span>T<span style="background-color:initial">h</span><span style="background-color:initial">e recent shortages of plastic materials as well as electronic components have made it difficult for the manufacturing industry to meet the demand. During the pandemic, many companies have temporarily or permanently switche</span><span style="background-color:initial">d to new kinds of products either by choice or necessity. As additive manufacturing can be a good help to accommodate demands of new products so can repurposing industrial robots be a fast and cost-effective way to create the necessary 3D printers for large scale additive manufacturing. </span>B<span style="background-color:initial">y using locally available recycled materials, a long and sometimes brittle supply chain can be shortened and become more resilient and sustainable. Depending on the purpose recycled plastics can be upgraded by wood or other bio based fibres to suit an application. The 3D printing process can in turn be adjusted to handle variations in the recycled raw material.</span></li></ul> <br /></div> <div><ul><li><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFT_UGO_LAFONTE.jpg" alt="Ugo Lafont" class="chalmersPosition-FloatRight" style="margin:5px" /><span style="font-weight:700"><a href="https://youtu.be/kJnxFs5t5rY"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Polymer additive manufacturing for space: from ground to out-of-earth applications</a></span><br />Ugo Lafont, Space Materials &amp; Technology Specialist at European Space Agency – ESA<br /><span style="font-weight:700">Abstract: </span>Additive manufacturing using thermoplastics present great advantage for the Space sector. From prototyping to flight hardware manufacturing and looking into the the future toward out-of earth manufacturing, this talk aim to expose the different aspect of polymer 3D printing (FFF/FDM) for space application. The European Space Agency is looking into the implementation and use of new materials to enable new applications for space. Polymers and polymer composites specially are part of such focus among others. However, the benefit of new functionalities or capabilities brought by materials shall be assessed against their behaviour under the effect of space environment. Effect of space environment (VUV, Thermal Cycling, ATOX) on the functional performance of advanced thermoplastics materials (PolyEtherEtherKetone-PEEK) focusing on electrically conductive PEEK processed by additive manufacturing will be presented. The results obtained on this material mechanical, optical and electrical performances be presented including demonstrator enable by such material and process combination. The effect of the process and its relation with the material on the final part performance will be discussed as well showing the importance of having a standardised approach to enable accurate part qualification. The recent advances on the use of 4D printing concepts suitable for space application will be exposed and discussed with an emphasis on the role of meso-structuration. Last, the results presented and the role of materials in the implementation and development of out-of-earth / In-space manufacturing capabilities will be put in perspective against the current state-of-the-art and available technologies. <span style="background-color:initial">​</span></li></ul> <br /></div> <div><ul><li><span style="font-weight:700"><a href="https://youtu.be/Ioo5EjU0vSo"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />3D Bioprinted Human Tissue Models for Pharmaceutical and Cosmetic Product Testing</a><br /></span><a href="https://www.cellink.com/global/faces-bioprinting-meet-cellink-scientific-officer-bite-team-leader-itedale-namro-redwan/"><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFT_Itedale_Namro_Redwan.jpg" alt="Itedale Namro Redwan" class="chalmersPosition-FloatRight" style="margin:5px" />I<span style="background-color:initial">t</span><span style="background-color:initial">edale</span><span style="background-color:initial"> Namro Redwan</span></a><span style="background-color:initial">, PhD. Chief Scientific Officer, Cellink<br /><span style="font-weight:700">Abstract: </span>Founded in 2016, Cellink is the leading bioprinting company providing technologies, products and services to create, understand and master biology. <br /></span>W<span style="background-color:initial">ith a focus on the application areas of bioprinting, the company</span><span style="background-color:initial"> develops and markets innovative technologies to life science researchers, enabling them to culture cells in 3D, perform high-throughput drug screening and print human tissue and organ models for the medical, pharmaceutical and cosmetic industries. <br /></span><span style="background-color:initial">Cellink’s bioinks are groundbreaking biomaterial solutions tha</span><span style="background-color:initial">t enable researchers to culture human cells into functional tissue constructs. These bioinks provide an environment similar to native human tissue that cells can thrive in due to adhesion contacts, as wel</span><span style="background-color:initial">l as the ability to be manipulated and remodeled, and direct differentiation and organization. Today, the company’s disruptive bioprinting platforms are used to print tissue structures such as liver, heart, skin and even functional cancer tumor models. During the presentation, some of the latest results obtained using the company’s different bioinks and bioprinters will be summarized.</span></li></ul> <div><br /></div></div> <div><br /></div> <div><ul><li><span style="font-weight:700"><a href="https://youtu.be/Ioo5EjU0vSo" style="background-color:rgb(255, 255, 255);outline:0px"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /></a><a href="https://youtu.be/w_x8jJmIJwY">AM from a pharmaceutical technology perspective</a><br /><a href="/en/Staff/Pages/anette-larsson.aspx"><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFT_Anette-Larsson.jpg" alt="Annette Larsson" class="chalmersPosition-FloatRight" style="margin:5px" />Anette Larsson</a><span style="font-weight:300;background-color:initial">, </span><span style="font-weight:300;background-color:initial">P</span><span style="font-weight:300;background-color:initial">rofessor; Chemistry and Chemical Engineering, Pharmaceutical Technology, Co-director for Area of Advance Production. </span></span><span style="background-color:initial"> <br /></span><span style="background-color:initial"><span style="font-weight:700">Abstract: </span></span><span style="background-color:initial"></span><span style="background-color:initial">A</span><span style="background-color:initial">M technique used for printing pharmaceutical formulations opens up new areas for the future pharmaceutics. However, there are some challenges. This presentation will discuss challenges when it comes to feeding, deposition and adhesion of pharmaceutical formulations, and also come with suggestion on need</span><span style="background-color:initial">ed next steps of development. To overcome these challenges is a must if the AM technique should be able to provide us with functional pharmaceutics for the future.</span></li></ul></div> <div><br /></div> <div><br /></div> <div><ul><li><span style="background-color:initial"><span style="font-weight:700">​<a href="https://youtu.be/t3ivaiMQPGc"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Direct ink writing of thermosetting polymers and composites enabled by frontal polymerization</a><br /></span></span><a href="https://matse.illinois.edu/people/profile/n-sottos"><img src="/en/areas-of-advance/materials/Calendar/PublishingImages/MFT_Nancy_R_Sottos.jpg" alt="Nancy R Sottos" class="chalmersPosition-FloatRight" style="margin:5px" />Nancy R S<span style="background-color:initial">ottos</span><span style="background-color:initial"></span></a><span style="background-color:initial"> , Professor at the University Of Illinois Urbana-Champaign, Materials Science &amp; Engineering, Swanlund Endowed Chair and Center for​ Advanced Study.<br /></span><span style="font-weight:700;background-color:initial">Abstract: </span><span style="background-color:initial">T</span><span style="background-color:initial">hermosetting polymers and composites present significant challenges for additive manufacturing due to the required speeds of printing in comparison to the time required for the curing reaction, relaxation of the printed ink, interfacial bonding of the printed layers, and integration of high aspect ratio fibers, among many other factors.  Our group recently developed a technique which combines direct ink writing with frontal polymerization (FP) of the thermosetting resin.  Frontal polymerization is a curing process in which a thermal stimulus initiates a self-pr</span><span style="background-color:initial">opagating reaction wave.  Our printing approach is based on the frontal ring-opening metathesis polymerization of endo-dicyclopentadiene (DCPD) and other comonomers using a thermally activated ruthenium catalyst. The monomeric ink is extruded from a print head onto a heated bed triggering the frontal polymerization (FP) reaction. Heat released from the polymerization activates adjacent monomer to further the curing process, thereby forming a self-sustaining propagating reaction wave that polymerizes the printed filament. The stiff polymerized segment of the filament can structurally support the printed part during its fabrication to produce three-dimensional (3D) free form printed structures with excellent fidelity. Fabricated parts exhibit a degree of cure of 99.2% and do not require further post-processing.  The addition of nanoparticles and other reinforcement phases allows access to a range of rheological profiles between low-viscosity liquid and free-standing elastomeric gel – all of which frontally polymerize upon thermal activation. This presentation will summarize the characterization of ink rheology for printing, influence of printing parameters, addition of reinforcing fillers, and the resulting mechanical properties of the printed structures.</span></li></ul></div>Wed, 22 Dec 2021 00:00:00 +0100https://www.chalmers.se/en/departments/mc2/news/Pages/Kristina-Davis-becomes-new-Wallenberg-Academy-Fellow-.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Kristina-Davis-becomes-new-Wallenberg-Academy-Fellow-.aspxShe is honing methods for finding life in other solar systems<p><b>​Researchers must be able to analyze the light from remote planets’ atmospheres if they are to discover whether life exists on planets in other solar systems. Wallenberg Academy Fellow Kristina Davis is developing sensitive systems for optical imaging that make this possible.</b></p>​If there is life on a planet, these living organisms will affect which gases are in its atmosphere. In turn, the composition of atmospheric gases affects the wavelength of the light reflected by the planet. Researchers can therefore discover whether there is life on the planet by studying and analyzing the reflected light.<br /><div><br /></div> <div>However, capturing light from planets in other solar systems, known as exoplanets, is difficult. The weak light reflected by the planet is smothered by the light of its nearby star and, in addition, the light from distant solar systems is deformed when it enters the Earth’s atmosphere.</div> <div><br /></div> <div><img src="/en/departments/mc2/news/PublishingImages/nat_DavisKristina_photoKristinaDavis.jpg" alt="nat_DavisKristina_photoKristinaDavis.jpg" class="chalmersPosition-FloatRight" style="margin:5px;width:250px;height:330px" />To make it possible to study distant planets, Dr Kristina Davis at the University of California, Santa Barbara, USA, is developing technical solutions for recreating a sharp image of an exoplanet and preserving as much as possible of the important information present in the light scattered of the planet. More detailed images of exoplanets will not only reveal whether we have company in the universe, but also provide new knowledge about these planets’ climates and how they formed.</div> <div><br /></div> <div><strong>How did your interest in trying to search for life on planets in other solar systems by analysing the light from the remote planets’ atmospheres start?</strong></div> <div><br /></div> <div>&quot;As a scientist, I want to guide my research through answering some of the biggest questions that we as humans have. To my mind, one of the biggest questions is “are we alone?” The most realistic way of answering that question is by searching for signatures of biological processes that affect the host planet’s atmosphere, for example seeing water vapor, oxygen, and other chemicals in the atmosphere that mimic our own composition. My research aims to better separate the planet light from the host star’s light, thereby making chemical analysis of those atmospheres easier and more robust.  My research is one small step in this process, but answering these big questions takes a large community of people working together.&quot;<br /></div> <div><br /><strong>What does this grant mean for your research?</strong><br /><br />&quot;The Wallenberg Academy Foundation’s grant will enable me to invest in developing new technology to help answer this question. Instrumentation is an expensive research field, but ultimately one that has the largest impact on how to directly image extrasolar planets. And technology is not the only part of the equation. Research is only accelerated by the students who build devices, write software, and perform calibrations for the instrument to be successful. The Wallenberg fellowship will help me hit the ground running and focus on how to make our measurements better, not how to get the resources to make it possible.&quot;<br /></div> <div><br /></div> <div><strong>In what way will your new research project benefit society?</strong></div> <div><br /></div> <div>“Are we alone” is a big question that has interested humanity since we were able to look out to the stars. But what that question leads to is another question, “what conditions are needed for life to exist?” One of the upcoming crisis for our planet is climate change. By studying exoplanet systems, we can gain a better understanding of what processes are common or uncommon in planetary systems, and how different initial conditions can lead to planets either very similar or very different than our own. It is my hope that by studying the environment of planetary systems, we will appreciate how unique our own Earth is, which can inspire a wider commitment to help our planet survive and thrive.&quot;</div> <div><br /></div> <div>Text: Robert Karlsson<br /></div> <div><br /></div> <div><h2 class="chalmersElement-H2">Four Wallenberg Academy Fellows to Chalmers 2021 </h2></div> <div>The research funding from the Wallenberg Academy Fellowship amounts to between SEK 5 and 15 million per researcher over five years, depending on the subject area. After the end of the first period, researchers have the opportunity to apply for another five years of funding. Read about the other appointments:</div> <div><br /></div> <div><a href="/en/departments/physics/news/Pages/Exploring-exotic-materials-for-the-computers-and-energy-technologies-of-the-future.aspx">Yasmine Sassa, Physics</a></div> <a href="/en/departments/math/news/Pages/classifying-mathematical-objects.aspx">Hannes Thiel, Mathematical Sciences</a><div><a href="/en/departments/cse/news/Pages/new-method-for-software-verification.aspx">Niki Vazou, Computer Science and Engineering</a> </div> Thu, 02 Dec 2021 10:00:00 +0100https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Call-for-hosting-a-WASP-distinguished-guest-professor-.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Call-for-hosting-a-WASP-distinguished-guest-professor-.aspx​Call for a proposal – hosting a WASP distinguished guest professor <p><b>​WASP is announcing funding for guest professors for a period of two years, expecting to stay at the host university approximately six months per year. The areas are: autonomous systems, software, AI/MLX and AI/math.​</b></p><div><b style="background-color:initial"><br /></b></div> <div><b style="background-color:initial">Deadline: Jan 15, 2022</b><br /></div> <div><br /></div> <div>In total, <b>two positions will be founded</b>, and the WASP university partners can apply. The funding is valid for <b>all WASP areas</b> (autonomous systems, software, AI/MLX and AI/math).</div> <div>The main ranking criterium is the applicant's excellence, the probability of the realization, and finally, the program/aim of the visit. WASP also welcomes a combination with other initiatives or/and involvement of Swedish industry. </div> <div>Financial conditions are flexible and will match the levels of top-level researchers.  </div> <div>WASP is expecting to get the proposals during Q4 2021. Internal Chalmers deadline is Dec 20. A university can propose several candidates. </div> <div>During Q1 or Q2 2022, WASP will approve in total two proposals. A strict policy of gender balance (50/50) will be followed. </div> <div><b>The expected start of the visit</b> is Q3/Q4 2022, or Q1 2023. </div> <div><br /></div> <h3 class="chalmersElement-H3">Proposal Submission</h3> <div>Send a proposal to <b>Chalmers WASP</b> <b>representative</b> to <a href="mailto:ivica.crnkovic@chalmers.se">Ivica Crnkovic</a>, <b>l</b><b>atest Jan 15, 2022</b>.</div> <div>The proposal should include:</div> <div><ul><li>Name and affiliation of the distinguished guest professor, with a short motivation, overall preliminary schedule and activity plan for the visit.</li> <li>The hosting department and division/research group.</li> <li>If possible, a letter of interest from the potential distinguished guest professor or a statement that the professor has been contacted ad has expressed interest in the visit.</li> <li>CV of the proposed guest professor</li> <li>The head of the department must sign the application</li></ul></div> <div><br /></div> <div>The applications will be analyzed by Chalmers internal committee (to be defined) before sending to WASP.  Note that Chalmers will follow the recommendations from WASP and try to provide a balanced list of the candidates. </div> <div><br /></div> <div>For more information, contact please, <a href="mailto:ivica.crnkovic@chalmers.se">Ivica Crnkovic</a></div> <div><a href="mailto:ivica.crnkovic@chalmers.se"></a><br /></div> ​Thu, 25 Nov 2021 13:00:00 +0100https://www.chalmers.se/en/departments/mc2/news/Pages/MC2-researchers-receive-millions-in-grants-from-the-Swedish-Research-Council.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/MC2-researchers-receive-millions-in-grants-from-the-Swedish-Research-Council.aspxMC2 researchers receive millions in grants from the Swedish Research Council<p><b>​When the Swedish Research Council’s grants for natural sciences and engineering for the years 2021–2025 recently was presented, several researchers at the Department of Microtechnology and Nanoscience received grants. Here you can learn more about some of the projects for which the grants were given.</b></p><h3 class="chalmersElement-H3">​Project title: &quot;Single-chip super-efficient frequency comb transmitter&quot;</h3> <div>Principal investigator: <a href="/sv/personal/Sidor/jochen-schroeder.aspx" target="_blank">Jochen Schröder</a></div> <div> </div> <div><br /></div> <div> </div> <div><strong>What is your research project about?</strong></div> <div> “The research project is about creating and investigating a multi-wavelength transmitter for fiber optical communication systems on a chip. The novelty of this approach is that in contrast to other methods which split and individually modulate different wavelengths, we propose to use a novel technique which can both generate multiple wavelengths from a single input laser and then modulate them with different data inside a single serial waveguide, without the need to separate wavelengths. This somewhat counter-intuitive approach is based on a method that borrows from imaging techniques in free-space optics and could potentially greatly reduce losses of devices, one of the main challenges for other methods.”</div> <div> </div> <div><strong>Why is it important to study this?</strong></div> <div>“Optical fibre networks underpin modern communication. Every time we do a search, send an email or watch a video online, our data is transmitted through an optical fibre, and the ability to readily transfer large amount of data to any point on the planet has transformed modern society. However, the fact that we are edging closer and closer to the fundamental limits of data carrying capacity of optical fibres requires continuous innovation to keep up with demands. The outcomes of our project would enable to significantly improve performance of future communication transmitters allowing us to continue keeping up with data demands which do not show any signs of slowing. The alternative approach further opens the door to new research into alternative ways of generating desired temporal waveforms, which could have fascinating applications in other fields such as optical quantum technology.”</div> <div> </div> <div><strong>What does the funding mean to you – what will you be able to accomplish that you perhaps wouldn’t have the means to do without it?</strong></div> <div>“In addition to carrying out the research in the proposal the funding enables us to put significant effort into developing a new integrated optics platform based on a second-order nonlinear material (Lithium Niobate). This platform is extremely promising for many applications in integrated photonics and is central to the project.”</div> <div> </div> <h3 class="chalmersElement-H3">“Spintronics with Topological Quantum Material and Magnetic Heterostructure”</h3> <div><span></span><span>Principal investigator</span>: <a href="/sv/personal/Sidor/Saroj-Dash.aspx" target="_blank">Saroj Prasad Dash</a></div> <div> </div> <div><br /></div> <div> </div> <div><strong>What is your research project about?</strong></div> <div> “This research project envisions creating and controlling topologically protected electronic states in novel quantum materials and devices. The investigation will utilize the nanoscale devices made out of atomically-thin topological quantum materials as a toolbox to test the laws of topological physics and explore its application potential in electronics, spintronics and quantum technologies.”</div> <div> </div> <div><strong>Why is it important to study this?</strong></div> <div>“Information technology has revolutionized our society and will be even more demanding in the future than we could imagine. However, due to these developments, energy consumption is expected to be over 30% of total energy demand by 2050. Our research will contribute to discovering new electronic phenomena and devices and are expected to have a massive potential for future computers to be more efficient, intelligent and reduce energy consumption.”</div> <div> </div> <div><strong>What does the funding mean to you – what will you be able to accomplish that you perhaps wouldn’t have the means to do without it?</strong></div> <div>“This research grant from Swedish Research Council is essential for answering timely and fundamental scientific questions important for our society. This funding will allow us to investigate novel scientific ideas and realize their device applications, which would not be possible otherwise.”</div> <div> </div> <h3 class="chalmersElement-H3">“Quantum networks with time delays and high-impedance transmission lines”</h3> <div><span></span><span>Principal investigator</span>: <a href="/sv/personal/Sidor/Göran-Johansson.aspx" target="_blank">Göran Johansson</a></div> <div> </div> <div><strong><br /></strong></div> <div><strong>What is your research project about?</strong></div> <div>“How to handle time delays in quantum information processing and communication.”</div> <div> </div> <div><strong>Why is it important to study this?</strong></div> <div>“Today, both quantum computers and the European quantum internet are growing in size, making it important to understand time delays.”</div> <div> </div> <div><strong>What does the funding mean to you – what will you be able to accomplish that you perhaps wouldn’t have the means to do without it?</strong></div> <div>“It makes it possible for me to have a PhD student working on this full time.”</div> <div><br /></div> <div><h3 class="chalmersElement-H3">&quot;Investigating quantum advantages in thermodynamics using superconducting circuits&quot;</h3></div> <div>Principal investigator: <a href="/en/staff/Pages/simoneg.aspx" target="_blank">Simone Gasparinetti</a><br /></div> <div><br /></div> <div><strong>What is your research project about?</strong><br />This project is an exploration into quantum thermodynamics, which is a fusion of two established fields of physics - quantum mechanics and thermodynamics. The central aim of the project is to search for quantum advantages in thermodynamics, taking inspiration from an analogous search which is currently underway in computer science. In particular, we will study how distinct quantum mechanical resources - such as quantum superposition and collective effects - could be harnessed to build novel thermal machines - such as heat engines and refrigerator - with performance superior to their classical counterpart.</div> <div><br />&quot;An intermediate goal of the project is to develop a robust, scalable platform to build such quantum thermal machines and conduct thermodynamic experiments. To do so, we will utilize superconducting quantum circuits similar to those that are being used at the Wallenberg Centre for Quantum Technology (WACQT) to build a quantum computer. However, we will develop advanced measurement techniques that are exclusive to experiments in quantum thermodynamics, including the implementation of Markovian heat baths and measurements of tiny heat flows at the level of individual quantum excitations.<br /><br /><strong>Why is it important to study this?</strong><br />&quot;The framework of thermodynamics is well established and has been utilized to usher the industrial age revolution to modern day technology. However, in this era of second quantum revolution and quantum technologies, it is far from clear how thermodynamics should be accounted for at the quantum level. There is a thriving theory community that has been putting forward many ideas and proposals over the last years; however, one can count a very small number of experimental works putting these ideas to work. We plan to develop a versatile testbed for experiments in this field, which will keep growing throughout and beyond the duration of the project.&quot;<br /></div> <div><br /></div> <div>&quot;In addition, the development of increasingly large quantum processing units raises the issue of heat management and energetics in quantum devices, making quantum thermodynamics increasingly relevant. What we learn from the experiments in this project is likely to guide the design of novel quantum devices and quantum thermal machines in the future.&quot;<br /> <br /><strong>What does the funding mean to you - what will you be able to accomplish that you perhaps wouldn’t have the means to do without it?</strong><br />&quot;This funding will enable me to hire one full-time student and expand my lab resources dedicated to experimental quantum thermodynamics efforts at Chalmers. While this research effort greatly benefits from the proximity of the Wallenberg Centre for Quantum Technology (WACQT), it lies outside of the scope of the Centre, which is to build a large-scale quantum computer.&quot;<br /><br /></div> <div>Text: Robert Karlsson</div> <div><em><br /></em></div> <div><em>In addition to these four, Samuel Lara Avila also received grants from The Swedish Research Council.</em><br /></div>Thu, 18 Nov 2021 12:15:00 +0100https://www.chalmers.se/en/news/Pages/Prestigious-funding-to-researchers-at-Chalmers.aspxhttps://www.chalmers.se/en/news/Pages/Prestigious-funding-to-researchers-at-Chalmers.aspxPrestigious funding to researchers at Chalmers<p><b>​The Swedish Research Council distributes 2.3 billion in natural and engineering sciences (2021 – 2025) and medicine and health (2021 –​ 2026).Of these project grants, a total of SEK 123 million go to 33 researchers at Chalmers.​</b></p>​These<span style="background-color:initial"> researchers at Chalmers receive grants – sorted by department:</span><span style="background-color:initial"> </span><h2 class="chalmersElement-H2">Department of Biology and Biological Engineering</h2> <div>Alexandra Stubelius, <span style="background-color:initial">Florian David and </span><span style="background-color:initial">​Verena Siewers</span><span style="background-color:initial"> about their projects: </span><span style="background-color:initial"><a href="/en/departments/bio/news/Pages/BIO-researchers-receive-prestigious-VR-grants.aspx">BIO researchers receive prestigious VR-grants​</a></span></div> <h2 class="chalmersElement-H2">Department of Computer Science and Engineering</h2> <div>Ivica Crnkovic </div> <div>Mary Sheeran </div> <div>Marina Papatriantafilou </div> <div>Magnus Myreen </div> <div>Philippas Tsigas<span style="background-color:initial"> </span></div> <h2 class="chalmersElement-H2">Department of Electrical Engineering</h2> <div>Erik Agrell </div> <div>Hana Dobsicek Trefna</div> <div>Giuseppe Durisi</div> <div>Mikael Persson</div> <div>Rui Lin<span style="background-color:initial"> </span></div> <h2 class="chalmersElement-H2">Department of Physics</h2> <div>Christian Forssén , <span style="background-color:initial">Mats Halvarsson, </span><span style="background-color:initial">I</span><span style="background-color:initial">stvan Pusztai och </span><span style="background-color:initial">Mattias Thuvander</span><span style="background-color:initial"> tells about the projects they have received grants for: </span><span style="background-color:initial"><a href="/en/departments/physics/news/Pages/Physics-researchers-receive-16-million-in-grants-from-the-Swedish-Research-Council.aspx">Physics researchers receive 16 million in grants from the Swedish Research Council​</a></span></div> <h2 class="chalmersElement-H2">Department of Industrial and Materials Science</h2> <div>Ragnar Larsson <span style="background-color:initial"> </span></div> <h2 class="chalmersElement-H2">Department of Chemistry and Chemical Engineering</h2> <div>Joakim Andréasson</div> <div>Maths Karlsson</div> <div>Andreas Dahlin </div> <div>Louise Olsson</div> <div>Marcus Wilhelmsson<span style="background-color:initial"> <br />The Head of the Department comments on the news and the researchers tells about their projects: <br /><a href="/en/departments/chem/news/Pages/Chemistry-researchers-receive-prestigious-funding-.aspx" title="Link to newarticle ">Chemistry researchers recieve prime funding </a></span></div> <h2 class="chalmersElement-H2">Department of Mathematical Sciences</h2> <div>Dennis Eriksson</div> <div>Anders Södergren<span style="background-color:initial"> </span></div> <h2 class="chalmersElement-H2">Department of Mechanics and Maritime Sciences</h2> <div>Henrik Ström, who studies <span style="background-color:initial">systems where small reactive particles move in complex geometries. These can be sensors, for example, where you want to be able to detect as quickly as possible whether a certain type of particle is present in a liquid. Read more about his project </span><span style="background-color:initial"><a href="/en/departments/m2/news/Pages/Henrik-Ström-receives-prestigious-funding-from-the-Swedish-Research-Council.aspx">&quot;Migration, mixing and modulation in reactive Brownian systems of arbitrary geometric complexity.&quot;​</a></span><span style="background-color:initial">​</span></div> <h2 class="chalmersElement-H2">Department of Microtechnology and Nanoscience</h2> <div>Saroj Prasad Dash </div> <div>Göran Johansson </div> <div>Samuel Lara Avila </div> <div>Simone Gasparinetti </div> <div>Shumin Wang</div> <div>Jochen Schröder</div> <a href="/en/departments/mc2/news/Pages/MC2-researchers-receive-millions-in-grants-from-the-Swedish-Research-Council.aspx"><div>Read more about some of the research projects</div></a><h2 class="chalmersElement-H2">Department of Space, Earth and Environment</h2> <div>Giuliana Cosentino, who is researching how and why stars form in the coldest and densest parts of the galaxies. Read more about her <a href="/en/departments/see/news/Pages/VR-grant-to-star-formation-project.aspx">Shock Compressions in the Interstellar Medium, as triggers of Star Formation</a><span style="background-color:initial">. </span></div> <div><br /></div> <div><a href="https://www.vr.se/english/applying-for-funding/decisions/2021-08-25-natural-and-engineering-sciences.html" target="_blank" title="Link to teh Swedish research council"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about the projects within natural and engineering sciences at the Swedish Research Council</a></div> <div><a href="https://www.vr.se/english/applying-for-funding/decisions/2021-08-25-natural-and-engineering-sciences.html" target="_blank" title="Link to teh Swedish research council"></a></div> <div><br /></div> <div><a href="/en/news/Pages/Read%20more%20about%20the%20projects%20within%20natural%20and%20engineering%20sciences%20at%20the%20Swedish%20Research%20Council" target="_blank" title="Link to teh Swedish research council" style="outline:currentcolor none 0px"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more about the projects within medicin and health at the Swedish Research Council</a>  </div> ​Fri, 05 Nov 2021 00:00:00 +0100https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/next-Vice-Director.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/next-Vice-Director.aspxICT AoA is looking for the next Vice-Director<p><b>Do you like to communicate, build relationships, and have a long-term vision and a desire to change the status quo? Do you also have an interest in leadership​ – take a look at this opportunity! ​We are looking for the next Vice-Director of Information and Communication Technology Area of Advance.</b></p>Chalmers' areas of advance are thematic platforms for strategy and long-term collaboration that aim to address specific challenges relevant to industry and society. They also offer common access to cutting-edge research infrastructures as well as to several targeted research centers. The aim is to generate new knowledge and solutions by breaking the boundaries of traditional academic disciplines and collaborating with various societal actors. <div><h3 class="chalmersElement-H3">Information and Communication Technology Area of Advance  (ICT AoA)</h3> <div>The vision of ICT <span style="background-color:initial">AoA</span><span style="background-color:initial"> </span><span style="background-color:initial">is to be a significant contributor t</span><span style="background-color:initial">o Chalmers and society in their digital transformations. In particular, the ICT AoA promotes the development of sustainable ICT tools and enablers for a sustainable transformation of society. To achieve this goal, the ICT AoA works with the departments, the education organization, and Chalmers strategic industrial partners to promote and support excellent research and education initiatives, especially those that do not naturally fall within the domain of a single department. </span></div> <div> </div> <h3 class="chalmersElement-H3"><span>The role of vice-director</span></h3> <div> </div> <div><span style="background-color:initial">As a vic</span><span style="background-color:initial">e-director, you have overall responsibility for the ICT AoA, together with the director, Prof. Erik Ström, and the ICT AoA management team. This means that you are expected to design activities and initiatives that help Chalmers address selected societal challenges within ICT. This involves engaging both Chalmers' faculty and relevant actors in society. </span></div> <div> </div> <h3 class="chalmersElement-H3"><span>Who are we looking for?</span></h3> <div> </div> <p class="chalmersElement-P"><span>Y</span><span></span><span>ou are a </span><span>docent or professor</span><span> at Chalmers in an area that is relevant for ICT </span><span>AoA</span><span>. You like to communicate, build relationships, and have a long-term vision and a desire to change the status quo. You are well organized and have an interest in leadership, interdisciplinary research, and collaboration with industry and relevant actors in society. Understanding Swedish is advantageous for this role. The role is time-limited to 3 years with the possibility of a prolongment of additional 3 years (6 years in total). The required commitment, which is 15%-25% of full time, is negotiated individually, in a dialogue with the vice-rector for research, with the ICT AoA director, and the department.</span></p> <h3 class="chalmersElement-H3"><span>Application procedure</span></h3> <div><span style="background-color:initial"><a href="https://easychair.org/conferences/?conf=vsolict21" title="link to application form" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Please upload to EasyChair​</a><span> </span>containing the following information:</span></div> <div><ul><li><span style="background-color:initial">CV</span></li> <li><span style="background-color:initial">Personal letter of maximum 2 pages</span></li> <li><span style="background-color:initial">Additional material if needed</span></li></ul></div> <div><span style="background-color:initial"><b>Application deadline: </b>7 December, 2021</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">If you have questions, please get in touch with the following persons:</span></div> <div><span style="background-color:initial"><b><a href="mailto:erik.strom@chalmers.se">Erik Ström</a></b>, Director, ICT AoA</span></div> <div><span style="background-color:initial"><b><a href="mailto:durisi@chalmers.se">Giuseppe Durisi</a></b>, Vice-Director, ICT </span><span style="background-color:initial">AoA</span><span style="background-color:initial"> </span></div> <div> </div> <div></div></div> ​Mon, 01 Nov 2021 07:00:00 +0100https://www.chalmers.se/en/departments/mc2/news/Pages/Making-the-strange-metal-state-in-high-temperature-superconductors-even-stranger.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Making-the-strange-metal-state-in-high-temperature-superconductors-even-stranger.aspxMaking the strange metal state in high temperature superconductors even stranger<p><b>​Researchers from Chalmers University of Technology, Sweden, have uncovered a striking new behavior of the ‘strange metal’ state of high temperature superconductors. The discovery represents an important piece of the puzzle for understanding these materials, and the findings have been published in the highly prestigious journal Science.</b></p><div>​Superconductivity, where an electric current is transported without any losses, holds enormous potential for green technologies. For example, if it could be made to work at high enough temperatures, it could allow for lossless transport of renewable energy over great distances. Investigating this phenomenon is the aim of the research field of high temperature superconductivity. The current record stands at −130 degrees celsius, which might not seem like a high temperature, but it is when compared to standard superconductors which only work below −230 degrees celsius. While standard superconductivity is well understood, several aspects of high temperature superconductivity are still a puzzle to be solved. The newly published research focusses on the least understood property – the so called ‘strange metal’ state, appearing at temperatures higher than those that allow for superconductivity.</div> <div> </div> <div>“This ‘strange metal’ state is aptly named. The materials really behave in a very unusual way, and it is something of a mystery among researchers. Our work now offers a new understanding of the phenomenon. Through novel experiments, we have learned crucial new information about how the strange metal state works” says Floriana Lombardi, Professor at the Quantum Device Physics Laboratory at the Department of Microtechnology and Nanoscience at Chalmers.</div> <h2 class="chalmersElement-H2">Believed to be based on quantum entanglement</h2> <div><img src="/en/departments/mc2/news/PublishingImages/Gruppfoto%20Floriana%20Lombardis%20forskargrupp.jpg" alt="Gruppfoto Floriana Lombardis forskargrupp.jpg" class="chalmersPosition-FloatRight" style="margin:5px;width:340px;height:217px" />The strange metal state got its name because its behavior when conducting electricity is, on the face of it, far too simple. In an ordinary metal, lots of different processes affect the electrical resistance – electrons can collide with the atomic lattice, with impurities, or with themselves, and each process has a different temperature dependence. This means that the resulting total resistance becomes a complicated function of the temperature. In sharp contrast, the resistance for strange metals is a linear function of temperature – meaning a straight line from the lowest attainable temperatures up to where the material melts.</div> <div> </div> <div>“Such a simple behavior begs for a simple explanation based on a powerful principle, and for this type of quantum materials the principle is believed to be quantum entanglement.” says Ulf Gran, Professor at the Division of Subatomic, High-Energy and Plasma Physics at the Department of Physics at Chalmers.</div> <div> </div> <div>“Quantum entanglement is what Einstein called ‘spooky action at a distance’ and represents a way for electrons to interact which has no counterpart in classical physics. To explain the counterintuitive properties of the strange metal state, all particles need to be entangled with each other, leading to a soup of electrons in which individual particles cannot be discerned, and which constitutes a radically novel form of matter.”</div> <h2 class="chalmersElement-H2">Exploring the connection with charge density waves</h2> <div>The key finding of the paper is that the authors discovered what kills the strange metal state. In high temperature superconductors, charge density waves (CDW), which are ripples of electric charge generated by patterns of electrons in the material lattice, occur when the strange metal phase breaks down. To explore this connection, nanoscale samples of the superconducting metal yttrium barium copper oxide were put under strain to suppress the charge density waves. This then led to the re-emergence of the strange metal state. By straining the metal, the researchers were able to thereby expand the strange metal state into the region previously dominated by CDW – making the ‘strange metal’ even stranger </div> <div> </div> “The highest temperatures for the superconducting transition have been observed when the strange metal phase is more pronounced. Understanding this new phase of matter is therefore of utmost importance for being able to construct new materials that exhibit superconductivity at even higher temperatures,” explains Floriana Lombardi. <div><br /></div> <div>The researchers’ work indicates a close connection between the emergence of charge density waves and the breaking of the strange metal state – a potentially vital clue to understand the latter phenomenon, and which might represent one of the most striking evidence of quantum mechanical principles at the macro scale. The results also suggest a promising new avenue of research, using strain control to manipulate quantum materials.  </div> <div> </div> <div><em>The article, <a href="https://www.science.org/doi/10.1126/science.abc8372" target="_blank" title="Restored strange metal phase through suppression of charge density waves in underdoped YBa2Cu3O7–δ">‘Restored strange metal phase through suppression of charge density waves in underdoped YBa2Cu3O7–δ’</a> is now available in the leading scientific journal Science. The research was carried out by Eric Wahlberg, Riccardo Arpaia, Edoardo Trabaldo, Ulf Gran, Thilo Bauch and Floriana Lombardi from Chalmers University of Technology, in collaboration with researchers from Politecnico di Milano, University La Sapienza, Brandenburg University of Technology and the European Synchrotron facility (ESRF).</em></div> <div><h2 class="chalmersElement-H2">For more information, contact:</h2> <div>Floriana Lombardi</div> <div>Professor in Microtechnology and Nanoscience, Chalmers University of Technology</div> <div><a href="mailto:floriana.lombardi@chalmers.se">floriana.lombardi@chalmers.se</a></div> <div>+46 31 772 3318</div> <div><br /></div> <div>Text: Joshua Worth</div> <div>Illustration: Yen Strandqvist<br /></div> <div>Group picture: Ananthu Surendran<br /></div> <div><em></em></div></div>Wed, 27 Oct 2021 15:15:00 +0200https://www.chalmers.se/en/areas-of-advance/production/news/Pages/New-center-will-accelerate-industrial-use-of-additive-manufacturing.aspxhttps://www.chalmers.se/en/areas-of-advance/production/news/Pages/New-center-will-accelerate-industrial-use-of-additive-manufacturing.aspxNew center will accelerate industrial use of additive manufacturing<p><b>​Rise is opening up the Application Center for Additive Manufacturing with industrial and academic partners, among them Chalmers. &quot;This will strengthen and improve the infrastructure in additive manufacturing,&quot; says Professor Lars Nyborg, Chalmers.</b></p><span style="background-color:transparent"><div>Combining additive manufacturing or 3D printing with new sustainable materials allows for more flexible and resource-efficient production. But for companies to fully utilize the strength of the technology, support is needed in every step along the supply chain ranging from the development of new business models to product design and testing in a real production environment. Therefore, Rise is opening up the<b> Application Center for Additive Manufacturing</b> together with industrial and academic partners.</div> <div><br /></div> <div>Additive manufacturing enables a paradigm shift for the industry and is relevant for many sectors such as aerospace, space, automotive, telecom, maritime, and consumer goods, to name a few. Some advantages are the mass customization enabling unique tailor-made components produced with minimal material waste and optimized for their weight. As a result, the global market for additive manufacturing is expected to continue to grow, and for metallic materials, the market will probably increase by a factor of two by 2025. Therefore, Sweden must continue to invest in additive manufacturing to strengthen its position in this rapidly growing market.</div> <div>&quot;By gathering end users, suppliers of services, technology, and materials with our researchers and experts at Rise, we enable for us to form a robust national ecosystem for additive manufacturing in Sweden,&quot; says <b>Seyed Hosseini</b>, Director of Application Center for Additive Manufacturing.</div> <div><br /></div> <p class="chalmersElement-P"><strong>Strengthened and improved infrastructure</strong></p> <div><span></span><span style="background-color:transparent">Via Production Area of Advance, Chalmers hosts the <b><a href="/en/centres/cam2/Pages/default.aspx">Competence Centre for Additive Manufacture</a></b><b> – Metal (CAM2)</b>, focusing on powder, materials, and process development in metal additive manufacturing (AM). In addition, Chalmers co-operates closely with Rise in several projects in the area of AM.</span><br /><span style="background-color:transparent">&quot;The start of this new application center means that we will further enhance the ecosystem in additive manufacturing,&quot; says <b>Lars Nyborg</b>, Director for the <b>Chalmers Production Area of Advance</b>, and continues:</span><br /><span style="background-color:transparent">&quot;The cooperation will bring solutions along the whole technology readiness scale – from research and innovation to implementation and demonstration of solutions – as both centers work with several core industrial partners in the area of AM.&quot;</span><br /><span></span><span style="background-color:transparent">Lars Nyborg points out that the new center will also mean a s</span>trengthened<span style="background-color:initial"> and improved infrastructure in AM</span><span style="background-color:transparent">, concerning metals and polymers and new technologies with</span><span style="background-color:initial"> shared capabilities for </span><span style="background-color:transparent">researchers at Chalmers.</span></div></span><span style="background-color:transparent"><div><span style="background-color:transparent"></span></div></span><span style="background-color:transparent"> <div><br /></div> <div><b>Cooperation – a key to success</b></div> <div>In the center, the industrial partners will have access to the latest research carried out by the research partners, test and demonstrate different additive manufacturing technologies including their pre-, and post-operations, as well as access expertise and competence along the supply chain. To be successful in such an environment, collaboration, and cooperation between all partners in the Center is vital as each partner has unique competence and experience. The center creates an independent and open environment for such collaboration to take place in Sweden. </div> <div>&quot;The center is a good example of how we gather expertise along the entire value chain and create a way to accelerate digital development in the Swedish industry. Additive manufacturing has great potential and now RISE can boost this transformation in taking important steps forward,&quot; says <b>Pia Sandvik</b>, CEO at <b>Rise</b>.</div> <div><br /></div> <div><b>Strong support from industrial partners</b></div> <div>15 partners are onboard from the start. The target group for the center is manufacturing companies, both large and small and medium-sized, but also suppliers of materials, software, and equipment for additive manufacturing. The partnership provides the opportunity to take full advantage of the skills and infrastructure that exist and as a partner, you also contribute to the center. With the help of the center, the threshold to test and evaluate the technology can be reduced.</div> <div>&quot;To be successful in additive manufacturing, you have to take care of the entire process, from equipment, printing process, finishing processes to quality assurance of the components. These are issues that need to be addressed, and we cannot do it ourselves. Still, cooperation between several parties is required,&quot; says <b>Vladimir Navrotsky</b>, Vice President Technology and Innovation, <b>Siemens Energy</b>.</div> <div>&quot;I hope that the results of the evaluations we do within the center will lead us to be mature in making our own decisions about which processes we will roll out in different operations and that we get a good decision basis for our strategy going forward,&quot; says <b>Johan Svenningstorp</b>, Director Research and Technology Development Truck Operations, <b>Volvo Group</b>.</div> <div><br /></div> <div><br /></div> <div><strong>Facts</strong></div> <div>The Application center for additive manufacturing is run by Rise together with the centre's 15 partners: AddUp, Alfa Laval, Chalmers, Digital Metal, DNA.am, Ericsson, Höganäs, Materialise, Modul-System HH, Nikon Metrology Europe, RENA Technologies Austria, Ringhals (Vattenfall), Siemens Energy, Volvo Cars, Volvo Group and through support from the Västra Götaland region, Vinnova and European Regional Development Fond. It is physically located at Rise in Mölndal but uses the entire research institute's expertise and knowledge. </div> <div><br /></div> <div>More about the center and contact: ri.se/am-center.</div> <div><br /></div> <div><strong>Contacts:</strong></div> <div><strong> </strong></div> <div><strong>Chalmers</strong></div> <div><a href="mailto:lars.nyborg@chalmers.se">Lars Nyborg</a>, Director, Chalmers Production Area of Advance, +46 31 772 12 57</div> <div><a href="mailto:eduard.hryha@chalmers.se">Eduard Hryha</a>, Director, Competence Centre for Additive Manufacture – Metal (CAM2)<span style="background-color:initial;font-weight:700"></span></div></span><span style="background-color:transparent"> <div><b><br /></b></div> <div><b>Rise</b></div> <div><a href="mailto:seyed.hosseini@ri.se">Seyed Hosseini</a>, Director of Application Center for Additive Manufacturing, Rise, <span style="background-color:transparent">+46 70 780 61 69</span></div> <div><span></span><a href="https://www.ri.se/sv/am-center" target="_blank" title="Link Rise web">More about the center </a><br /></div></span><div> </div> ​​Fri, 22 Oct 2021 11:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/New-research-on-how-to-reduce-the-interference-from-defects-in-materials-for-superconducting-electronic-components.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/New-research-on-how-to-reduce-the-interference-from-defects-in-materials-for-superconducting-electronic-components.aspxNew research on how to reduce the interference in superconducting components<p><b>​In a newly published article in Science Advances, Chalmers researchers present experiments and models that explain how to reduce the interference from defects in materials for superconducting electronic components. The interference is reduced by exposing the materials to a radio frequency electric field.The new results may in particular play an important role in the production of quantum computers.</b></p>​<span style="background-color:initial">Superconducting materials contain defects that generate disturbing noise. Today, no one knows for sure exactly what these defects consist of.</span><div><br /></div> <div>&quot;They are atoms or molecules with electric charge that exist in dielectric * materials, on the surface of metals and insulating materials. There is always a thin oxide that forms on the surface, and the oxide is not completely perfect but has defects in it&quot;, says Jonas Bylander, associate professor at the  Quantum Technology Laboratory at the Department of Microtechnology and Nanoscience.</div> <div><br /></div> <div>In the newly published research, Jonas Bylander and his colleagues show how it is possible to reduce the noise in the materials by exposing them to a radio-frequency electric field.</div> <div><br /></div> <div>&quot;We discovered that it is the same kind of defects that dominate how well different materials and components work&quot;, says Jonas Bylander. &quot;And we developed a model that explains in detail what is happening.&quot;</div> <div><br /></div> <div>The researchers discovered that the defects display so-called &quot;motional narrowing&quot; when they are exposed to the radio-frequency electric field, something that has not been previously detected in dielectric materials. Jonas Bylander compares the effect that occurs with that of reduced motion blur in a photograph.</div> <div><br /></div> <div>&quot;One can say that these existing defects can have several different positions, and when the background fluctuates, the defects can jump between these positions. But when we make the background fluctuate faster, the defects do not catch up. The result is that the defects appear to be sitting still. Unintuitively, it’s almost the opposite of motion blur.&quot;</div> <div><br /></div> <div>The newly published research increases the understanding of how materials used to build superconducting circuits work – when reducing the noise, the components perform better.</div> <div><br /></div> <div>&quot;We try to build better components from better materials and design the components so that they are not so sensitive to noise, and if we understand the materials better, we will also be able to build better quantum computers.&quot;</div> <div><br /></div> <div>Text: Robert Karlsson<br /></div> <h3 class="chalmersElement-H3">Read the scientific article here</h3> <div><a href="https://www.science.org/doi/10.1126/sciadv.abh0462" target="_blank">https://www.science.org/doi/10.1126/sciadv.abh0462</a></div> <div>---</div> <div>* A dielectric material is an electrical insulator that can be polarized by an applied electric field.</div>Thu, 21 Oct 2021 15:30:00 +0200https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Can-automated-fact-checkers-clean-up-the-mess.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/Can-automated-fact-checkers-clean-up-the-mess.aspxCan automated fact-checkers clean up the mess?<p><b>​The dream of free dissemination of knowledge seems to be stranded in fake news and digital echo chambers. Even basic facts seem hard to be agreed upon. So is there hope in the battle to clean up this mess?  </b></p>​Yes! Many efforts are made within the Information and Communications Technology (ICT) research area to find solutions. Learn more about it at our <span style="background-color:initial">seminar, focusing on automated fact-checking, both in research and practice.</span><div><div><br /></div> <div><b>DATE: </b>18 November 2021 (The date has already passed, but see the film from the seminar, link below)</div> <div><b>TIME: </b>09:45–12:00 CET</div> <div><b style="background-color:initial">LOCATION:</b><span style="background-color:initial"> Online or at Lingsalen, Studenternas Hus, Götabergsgatan 17 </span><span style="background-color:initial">​(Registration link below</span><span style="background-color:initial">). </span><br /></div> <div><em>Note! The physical seminar is only for students and staff at Chalmers and University of Gothenburg.</em></div> <div><br /></div> <div><div><a href="https://youtu.be/J9j_rP2P2wg" target="_blank" title="link to Youtube"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />SEE THE FILM FROM THE SEMINAR​</a></div> <span style="background-color:initial"></span><div><br /><span style="background-color:initial"></span><div><div> <h3 class="chalmersElement-H3">AGENDA​</h3> <div><div></div> <div><div><b>09:45 Introduction </b></div> <div><b>Erik Ström</b>, Director, Information and Communications Technology Area of Advance</div> <div><b>10:00 Looking for the truth in the post-truth era</b></div> <div><b>Ivan Koychev,</b> University of Sofia, Bulgaria. He gives a brief overview of automatically finding the claims and facts in texts along with confirmation or refutation.</div> <div><b>10:30 Computational Fact-Checking for Textual Claims</b></div> <div><b>Paolo Papotti,</b> Associate Professor, EURECOM, France. He will cover the opportunities and limitations of computational fact-checking and its role in fighting misinformation. He will also give examples from the &quot;infodemic&quot; associated with the COVID-19 pandemic.</div> <div><b>11:00 Pause</b></div> <div><b>11:10 Panel discussion. </b></div> <div><b>In the panel:</b></div> <div>Moderator <b>Graham Kemp</b>, professor, Department of Computer Science and Engineering, Chalmers. </div> <div><b>Sheila Galt</b>, retired professor of Applied Electromagnetics, Chalmers. Engaged researcher in the Swedish Skeptics Association (Vetenskap och Folkbildning, VoF) for many years.</div> <div><b>Bengt Johansson</b>, professor in Journalism, University of Gothenburg. He has a strong focus on the field of media, power, and democracy. </div> <div><b>Jenny Wiik</b>, researcher and project leader for Media &amp; Democracy. Her research is looking into, e.g., automation of journalism. </div> <div>The keynotes, <b>Ivan Koychev</b> and <b>Paolo Papotti </b>are also part of the discussion.</div> <div><b>12:00 The end​</b></div></div> <div><b><br /></b></div> <div></div></div> <div><em>Chalmers ICT Area of Advance arranges this event as part of the Act Sustainable week.</em></div> <div><br /></div> <div><a href="https://www.actsustainable.se/thursday21" target="_blank" title="link to the Act Sustainable website"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more and register</a> (at theAct Sustainable website)</div> <div><a href="https://www.actsustainable.se/thursday21" target="_blank" title="link to the Act Sustainable website"></a><a href="https://www.actsustainable.se/" target="_blank" title="Link to start page Act Sustainable website"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more about the Act Sustainable week​</a>​<br /></div></div></div> <div><br /></div></div></div></div> ​Fri, 01 Oct 2021 00:00:00 +0200https://www.chalmers.se/en/departments/see/news/Pages/The-space-industry-gathers-at-Chalmers.aspxhttps://www.chalmers.se/en/departments/see/news/Pages/The-space-industry-gathers-at-Chalmers.aspxThe space industry gathers at Chalmers<p><b>​​On 10–12 October, actors from the space industry gather in Gothenburg for the conference Rymdforum – Space Forum 2021, w​here the latest research, technical achievements and Sweden's role in space will be discussed for two days. The space industry has a key role in terms of our ability to handle the climate challenge, environment and safety – and, among others, Swedish &quot;Minister of Space&quot;, Matilda Ernkrans participates.​</b></p><div><span style="background-color:initial">More and more authorities, companies and individuals in Sweden use space technology for everything from climate research, env​ironment and weather forecasts to agriculture, fishing and traffic planning. And the number of satellites in operation is expected to reach tens of thousands within the next ten years. In the latest budget bill, the government proposes an annual increase in the space budget by SEK 100 million. </span><span style="background-color:initial">In short – space is more important than ever. </span></div> <div><br /></div> <div>And large part of the Swedish space industry can be found in Western Sweden, in an industry whose importance has increased exponentially in recent years.</div> <div><br /></div> <div><ul><li>But how is the work with a lunar base for space travel going?</li> <li>What are Europe's space plans?</li> <li>What significance do future satelliteshave for the communication networks?</li> <li>How does space operations contribute to entrepreneurship and growth?</li> <li>How can space systems help achieve the goals of Agenda 2030?</li> <li>And will we ever find life on other planets?</li></ul></div> <div><span style="background-color:initial">This and much more will be discussed at the conference Space Forum 2021.</span><br /></div> <div><br /></div> <div>The theme for this year's Space Forum is &quot;Space in new era&quot;. Among the participants are Minister for Higher Education and Research, <span style="background-color:initial">Matilda Ernkrans, Director General of the Swedish Space Agency, Anna Rathsman, as well as a number of foreign and Swedish experts, researchers, politicians and business leaders. There is also an exhibition where most Swedish space companies exhibit.​</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><a href="https://rymdforum2021.se/english/">Read the full programme at Rymdforum's official website</a>. </span></div>Wed, 29 Sep 2021 00:00:00 +0200https://www.chalmers.se/en/areas-of-advance/ict/news/Pages/WASP-PhD-Student-Positions.aspxhttps://www.chalmers.se/en/areas-of-advance/ict/news/Pages/WASP-PhD-Student-Positions.aspxCall for WASP affiliated PhD Student Positions<p><b>15 open positions within WASP Graduate School</b></p><p class="chalmersElement-P"><b>​Application deadline: </b>October 31, 2021 <span>(opens October 1)</span></p> <p><font color="#212121"><br /></font></p> <p><font color="#212121">The Wallenberg AI, Autonomous Systems and Software Program hereby announces a <b>call for 15 affiliated WASP PhD student positions </b>at the five partner universities Chalmers, KTH, Linköping University, Lund University and Umeå University as well as the research groups at Örebro University and Uppsala University that are members of WASP. The purpose of the call is to provide the opportunity for PhD students not funded by WASP to be part of the WASP Graduate School.</font></p> <p><font color="#212121"><br /></font></p> <p><font color="#212121"><em><b>Wallenberg AI, Autonomous Systems and Software Program (WASP)</b> is Sweden’s largest ever individual research program, a major national initiative for strategically motivated basic research, education, and faculty recruitment. The program addresses research on artificial intelligence and autonomous systems acting in collaboration with humans, adapting to their environment through sensors, information, and knowledge, and forming intelligent systems-of-systems. </em><br /></font></p> <p><font color="#212121"><br /></font></p> <p><span style="background-color:initial;color:rgb(33, 33, 33)"></span></p> <p><span style="background-color:initial;color:rgb(33, 33, 33)"><a href="https://wasp-sweden.org/calls/call-for-affiliated-wasp-phd-student-positions/" target="_blank" title="link to WASP call website"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the full information on the WASP website</a></span><br /></p> <p><br /></p> <div> </div> <div> </div>Thu, 23 Sep 2021 00:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/Compact-amplifier-could-revolutionise-optic-communication.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Compact-amplifier-could-revolutionise-optic-communication.aspxUnique amplifier could change optical communication<p><b>​Researchers at Chalmers University of Technology present a unique optical amplifier that is expected to revolutionise both space and fiber communication. The new amplifier offers high performance, is compact enough to integrate into a chip just millimeters in size, and – crucially – does not generate excess noise.</b></p>​<span style="background-color:initial">&quot;This could be compared to switching from older, dial-up internet to modern broadband, with high speed and quality,&quot; says Professor Peter Andrekson, Head of the Photonics Laboratory at the Department of Microtechnology and Nanoscience at Chalmers.</span><div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">​Optical communication makes it possible to send information over very long distances. The technology is useful in a range of applications, such as space communication and in fiber optic cables for internet traffic.</span><div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><img src="/sv/institutioner/mc2/nyheter/PublishingImages/Spiral%20waveguide.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;width:260px;height:146px" />With communication based on light, rather than radio waves, we could, for example, quickly send high-resolution images from Mars. The information, carried by laser beams, could be sent with high speed from a transmitter on the planet to a receiver on Earth or on the Moon. Optical communication also allows us to use the internet around the world – whether the signal is transferred in optical fiber cables under the seabed or transmitted wirelessly.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">Because the light – carrying the information between two distant points – loses power along the way, a large number of optical amplifiers are needed. Without amplifiers, up to 99 percent of the signal in an optical fiber cable would disappear within 100 kilometers.</span></div> <h2 class="chalmersElement-H2"><span>A constant battle against excess noise</span></h2> <div><span style="background-color:initial">A well-known problem in optical communication, however, is that these amplifiers add excess noise that significantly impairs the quality of the signal you want to send or receive. Now, the Chalmers researchers present an extremely promising solution to an obstacle that has existed for decades.</span><br /></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">“We have developed the world's first optical amplifier that significantly enhances the range, sensitivity and performance of optical communication, that does not generate any excess noise – and is also compact enough to be of practical use,” says Ping Zhao, Postdoc at the Photonics Laboratory at Chalmers and one of the lead authors of the scientific paper, now <a href="https://www.science.org/doi/10.1126/sciadv.abi8150" target="_blank">published in Science Advances​</a>.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">The light amplification in the project is based on a principle known as the Kerr effect, which so far is the only known approach that amplifies light without causing significant excess noise. The principle has been demonstrated before, but never in such a compact format– previous versions were too bulky to be useful.</span><div>The new amplifier fits in a small chip just a few millimeters in size, compared to previous amplifiers that have been several thousand times larger.</div> <h2 class="chalmersElement-H2"><span>Tiny, quiet, and with high performance</span></h2> <div><span style="background-color:initial">Additionally, the new amplifiers offer a level of performance high enough that they can be placed more sparingly, making them a more cost-effective option. They also work in a continuous wave (CW) operation rather than a pulsed operation only.</span><br /></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><img src="/sv/institutioner/mc2/nyheter/PublishingImages/Chip.jpg" class="chalmersPosition-FloatRight" alt="Chip" style="margin:5px;width:260px;height:215px" />“What we demonstrate here represents the first CW operation with an extremely low noise in a compact integrated chip. This provides a realistic opportunity for practical use in a variety of applications. Since it’s possible to integrate the amplifier into very small modules, you can get cheaper solutions with much better performance, making this very interesting for commercial players in the long run,” says research leader Peter Andrekson.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">The new results also open doors to completely new applications in both technology and science, explains Peter Andrekson.</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">“This amplifier shows unprecedented performance. We consider this to be an important step towards practical use, not only in communication, but in areas including quantum computers, various sensor systems and in metrology when making atmospheric measurements from satellites for Earth monitoring.”</span></div> <h2 class="chalmersElement-H2">More about the research:</h2> <div><ul><li><span style="background-color:initial">The scientific article <a href="https://www.science.org/doi/10.1126/sciadv.abi8150" target="_blank" title="Overcoming the quantum limit of optical amplification in monolithic waveguides">&quot;Overcoming the quantum limit of optical amplification in monolithic waveguides&quot;​</a> has been publis​hed in Science Advances. The study was conducted by Zhichao Ye, Ping Zhao, Krishna Twayana, Magnus Karlsson, Victor Torres-Company and Peter Andrekson. The researchers work at the Department of Microtechnology and Nanoscience at Chalmers University of Technology.</span></li> <li><span style="background-color:initial">The Chalmers researchers present the first compact CW-pumped monolithic parametric amplifier, and in addition demonstrated a noise performance well below the conventional quantum limit. The results were enabled by the lowest loss ever achieved in a dispersion-engineered integrated waveguide silicon-nitride material platform.</span></li> <li><span style="background-color:initial">The research project has been funded by the Swedish Research Council (Grant VR-2015-00535 and VR-2020-00453) The Knut and Alice Wallenberg Foundation and Horizon 2020 Marie Skłodowska-Curie Innovative Training Network Microcomb (GA 812818).</span></li> <li>Read more: Find the previous press release from Peter Andrekson’s research group: <a href="https://news.cision.com/chalmers/r/the-most-sensitive-optical-receivers-yet-for-space-communications%2cc3208049">https://news.cision.com/chalmers/r/the-most-sensitive-optical-receivers-yet-for-space-communications,c3208049</a></li></ul></div> <h2 class="chalmersElement-H2"><span>For more information, please contact:</span></h2> <div><span style="background-color:initial"><strong><img src="/sv/institutioner/mc2/nyheter/PublishingImages/Ping-Zhao_press.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px;width:150px;height:128px" />Ping Zhao</strong></span></div> <div><span style="background-color:initial">Postdoc, Photonics Laboratory at Chalmers, Department of Microtechnology and Nanoscience, Chalmers University of Technology, <a href="mailto:pingz@chalmers.se">pingz@chalmers.se</a></span><br /></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><strong><br /></strong></span></div> <div><br /></div> <div><br /></div> <div><span style="background-color:initial"><strong><img src="/sv/institutioner/mc2/nyheter/PublishingImages/Peter_Andrekson_2020_press.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px;width:150px;height:120px" />Peter Andrekson</strong></span></div> <div><span style="background-color:initial">Professor, Head of the Photonics Laboratory, Department of Microtechnology and Nanoscience, Chalmers University of Technology, +46 31 772 16 06, <a href="mailto:peter.andrekson@chalmers.se">peter.andrekson@chalmers.se​</a></span></div></div></div> <div><br /></div> <div><br /></div> <div><br /></div> <div>Text: Lovisa Håkansson and Mia Halleröd Palmgren</div> <div>Photo: Henrik Sandsjö | Illustration: Yen Strandqvist<br /></div>Tue, 21 Sep 2021 08:00:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/Quantum-computer-project-boosted-by-visiting-superstar.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/Quantum-computer-project-boosted-by-visiting-superstar.aspxQuantum computer project boosted by superstar<p><b>​John Martinis, superstar in quantum computing and former leader of Google's venture in the field, has spent the last month at Chalmers as a guest researcher.“The quantum computing team at Chalmers is doing all the right things and is in a position to make good progress,” he says.</b></p>​<span style="background-color:initial">In 2019, a research team at Google made a big breakthrough: their quantum computer managed to surpass the world's best supercomputers in solving a computational task (read more in <a href="/en/departments/mc2/news/Pages/Big-breakthrough-for-quantum-computers.aspx" target="_blank">Big breakthrough for quantum computers​</a>).</span><div><br /></div> <div>The chief scientist behind Google's quantum computer, world-famous Professor John Martinis, left Google the following year and returned to his university, University of California, Santa Barbara. However, he spent last month in Gothenburg as a guest researcher in Chalmers’ quantum computing team where Per Delsing and Jonas Bylander lead the engineering of a Swedish quantum computer. The focus has mainly been on the basic building blocks of the quantum computer – the qubits.</div> <h2 class="chalmersElement-H2">Broke new ground</h2> <div><span style="background-color:initial">Although Martinis and his former colleagues at Google broke new ground with their 53-qubit quantum computer, he admits that it did not work quite as well as they wanted. But it was difficult to find out why in the complex system that made up the quantum computer.</span><br /></div> <div><br /></div> <div><img src="/sv/institutioner/mc2/nyheter/PublishingImages/John2_400x400px.jpg" alt="John Martinis" class="chalmersPosition-FloatRight" style="margin:5px;width:200px;height:200px" />“Today people tend to focus on how many qubits you have. In my opinion, one needs to go back and improve the qubits before scaling up. I’ve been thinking quite deeply on how to make superconducting qubits better, and I wanted to come here because the Chalmers team is doing great work on this,” says John Martinis.</div> <div><br /></div> <div>He does not have his own research group at the moment, but still many ideas about experiments that could be done to better understand the factors that affect the performance of the qubits.</div> <div><br /></div> <div>“Many of the experiments I wanted to do last year, they already did here. From their data I’ve been able to better understand what’s going on with the materials in the qubits. And I have shared my ideas on how to analyze the data and about further experiments to do.”</div> <h2 class="chalmersElement-H2">&quot;Many valuable suggestions&quot;</h2> <div><span style="background-color:initial">Per Delsing describes John Martinis' visit as a shot in the arm:</span></div> <div>“The entire group looks up to him, like a hero. The fact that we all got to spend time with him and his deep interest in what everyone is doing has been like a huge shot. John is extremely skilled and experienced and has given us many valuable suggestions on how to continue our work.”</div> <div>The plan now is to stay in touch, to share results, thoughts and ideas.</div> <div><span style="background-color:initial">“I think that really good things will come out of this,” says John Martinis.</span><br /></div> <div><br /></div> <div><div>Text: Ingela Roos</div> <div>Photo: Kamanasish Debnath</div></div> <div><h2 class="chalmersElement-H2">More about Chalmer’s quantum computer project</h2> <p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-attachment:initial;background-origin:initial;background-clip:initial">The research is part of the Wallenberg Centre for Quantum Technology (WACQT), a twelve-year, billion-SEK investment with two main purposes: to develop Swedish expertise in quantum technology, and to build a useful quantum computer with at least one hundred quantum bits. The research centre is mainly funded by the Knut and Alice Wallenberg Foundation.</span></p> <h2 class="chalmersElement-H2"><span lang="EN-GB">Read more:</span></h2> <p class="MsoNormal" style="margin-bottom:7.5pt;line-height:16.5pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-attachment:initial;background-origin:initial;background-clip:initial"><span lang="EN-GB"><a href="/en/news/Pages/Engineering-of-a-Swedish-quantum-computer-set-to-start.aspx"><b>Engineering of a Swedish quantum computer set to start</b></a></span><span lang="EN-GB" style="font-size:10.5pt"> (initial press release from 2017)<br /> </span><span lang="EN-GB"><a href="/en/centres/wacqt/discover/Pages/default.aspx"><b>Discover quantum technology</b></a></span><span lang="EN-GB" style="font-size:10.5pt"> (introduction to quantum technology)<br /> </span><span lang="EN-GB"><a href="/en/centres/wacqt/discover/Pages/Quantum-computing.aspx"><b>Quantum computing</b></a></span><span lang="EN-GB" style="font-size:10.5pt"> (introduction to quantum computing)<br /> </span><span lang="EN-GB"><a href="/en/centres/wacqt/Pages/default.aspx"><b>Wallenberg Centre for Quantum Technology (WACQT)</b></a></span><span lang="EN-GB" style="font-size:10.5pt"><br /> </span><span lang="EN-GB"><a href="/en/centres/wacqt/research/Pages/Research-in-quantum-computing-and-simulation.aspx"><b>Research in quantum computing and simulation</b></a></span><span lang="EN-GB" style="font-size:10.5pt"> (about quantum computing research within WACQT) ​</span></p></div> Tue, 07 Sep 2021 16:30:00 +0200https://www.chalmers.se/en/departments/mc2/news/Pages/unique-radar-components-for-more-sustainable-aviation.aspxhttps://www.chalmers.se/en/departments/mc2/news/Pages/unique-radar-components-for-more-sustainable-aviation.aspxUnique radar components for more sustainable aviation<p><b>​More efficient air traffic control systems could make a significant contribution to reducing the climate impacts of aviation. But to achieve this, new and more advanced radar systems are required for more accurate navigation. Now, a Chalmers-led research project has developed radar components with a unique level of performance that can contribute to reducing the climate impact.</b></p>​<span style="background-color:initial">A European target for reducing the climate impact of aviation states that aircraft that are put into operation after 2020 should have 50 percent lower carbon dioxide emissions compared to those that put into operation in 2000. Of this improvement, more efficient air traffic management systems are estimated to be able to contribute about 10 percentage points. Newer, more efficient systems, which can facilitate better flying in rain and fog, are an important measure to reduce carbon dioxide emissions and achieve the goal. When aircraft can fly more directly towards their destination and avoid interrupted landing attempts due to bad weather, unnecessary emissions can be reduced.</span><div><br /><span></span><h2 class="chalmersElement-H2">Components with the right properties have been missing</h2> <div>A precondition for this is to upgrade the air traffic control systems with better radars on the aircraft themselves. These radars operate in the assigned frequency range 93–100 gigahertz. The problem is, radar components in this frequency range, with properties that allow large-scale use and are sufficiently cost-effective, are not currently commercially viable. But now, after almost three years of research, the Chalmers-led, European project is the first in the world to demonstrate precisely this type of component.</div> <div>“Aviation has a major climate impact and so it is important to work with as many measures in parallel to reduce this impact. It feels great to be able to contribute to more sustainable flying in the future,” says Dan Kuylenstierna, Associate Professor at the Department of Microtechnology and Nanoscience at Chalmers and leader of the project.</div> <div><br /></div> <h2 class="chalmersElement-H2">The challenges of generating high transmitter power at high frequency</h2> <div>The radar components developed through the project are similar to those in self-driving cars. But to be able to be used in aircraft, especially in rain and bad weather, the transmitter power needs to increase significantly. This in itself is a difficult task, as the frequencies used in aviation are higher than in cars – and the higher the frequency, the more difficult it becomes to generate high transmitter power. To solve this problem, the research project developed new circuits and encapsulation methods. This means that the technology can now be integrated into the new aircraft's air traffic control system in a way that is both cost-effective and reliable. </div> <div><br /></div> <div>The scientific results of the research project have been published at international conferences:</div> <div><a href="https://ieeexplore.ieee.org/document/9392981" target="_blank" title="Link to publication: A 24 GHz Sub-Harmonically Pumped Resistive Mixer in GaN HEMT Technology"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />A 24 GHz Sub-Harmonically Pumped Resistive Mixer in GaN HEMT Technology</a></div> <div><span style="background-color:initial"><a href="https://ieeexplore.ieee.org/document/9331430" target="_blank" title="Link to publication: A low phase noise W-band MMIC GaN HEMT oscillator"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />A low phase noise W-band MMIC GaN HEMT oscillator</a></span><br /></div> <div><br /></div> <div>The project has also led to a patent application.​</div> </div>Fri, 09 Jul 2021 11:00:00 +0200