News: Mikroteknologi och nanovetenskap related to Chalmers University of TechnologyMon, 29 Nov 2021 10:30:40 +0100​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: Dec 20, 2021</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="">Ivica Crnkovic</a>, <b>l</b><b>atest Dec 20, 2021</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="">Ivica Crnkovic</a></div> <div><a href=""></a><br /></div> ​Thu, 25 Nov 2021 13:00:00 +0100 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><em>In addition to these three, Simone Gasparinetti and Samuel Lara Avila also received grants from The Swedish Research Council.</em><br /></div> ​Thu, 18 Nov 2021 12:15:00 +0100 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="" 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="" 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 +0100 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="" 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>30 November 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="">Erik Ström</a></b>, Director, ICT AoA</span></div> <div><span style="background-color:initial"><b><a href="">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 +0100 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="" 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=""></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 +0200 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,, 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:</div> <div><br /></div> <div><strong>Contacts:</strong></div> <div><strong> </strong></div> <div><strong>Chalmers</strong></div> <div><a href="">Lars Nyborg</a>, Director, Chalmers Production Area of Advance, +46 31 772 12 57</div> <div><a href="">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="">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="" target="_blank" title="Link Rise web">More about the center </a><br /></div></span><div> </div> ​​Fri, 22 Oct 2021 11:00:00 +0200 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>– 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, 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>– We discovered that it is the same kind of defects that dominate how well different materials and components work, says Jonas Bylander. And we developed a model that explains in detail what is happening.</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>– 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.</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>– 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.</div> <h3 class="chalmersElement-H3">Read the scientific article here</h3> <div><a href="" target="_blank"></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 +0200 automated fact-checkers clean up the mess?<p><b>​The dream of free dissemination of knowledge seems to be stranded in a swamp of tangled truth. Fake news proliferates. Digital echo chambers confirm biases. 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 software solutions. Learn more about it at our <span style="background-color:initial">morning session, focusing on automated fact-checking, both in research and practice.</span><div><div><div><br /></div> <div><b>DATE: </b>18 November 2021</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="" style="outline:0px"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />TECHNICAL PROBLEMS! No livestream today! We will record it and send afterwards. Check here for link later.​</a></div> <div><span style="background-color:initial">You can send in questions by mail to <a href=""></a></span></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="" 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="" target="_blank" title="link to the Act Sustainable website"></a><a href="" 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></div> ​Fri, 01 Oct 2021 00:00:00 +0200 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="">Read the full programme at Rymdforum's official website</a>. </span></div>Wed, 29 Sep 2021 00:00:00 +0200 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="" 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 +0200 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="" 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="" 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="">,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=""></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="">​</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 +0200 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 +0200 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="" 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="" 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 a mind set on nano<p><b>​She’s a professor of applied quantum physics, a mother of three and speaks five languages. As the leader of the interdisciplinary Nano Excellence Initiative, Janine Splettstoesser now wants to create one of Europe's top nano-centers with the goal of addressing the biggest challenges facing the society. But when it comes to the proudest career moments, she’d rather speak about her students. &quot;When a PhD student gives a really good defense on their dissertation and can continue to work on what they really like and subsequently grow as a researcher. That makes me really proud.”​</b></p>​<span style="background-color:initial">We meet in the department’s family room. It's Easter break and Janine’s 6-year-old son Paolo has come along. He immediately starts pulling out building kits and tricky games from the shelves while Janine takes a seat at a destinated workplace across the room. An empty desk and an ordinary laptop. A mind-blowing thought to an outsider that this is all that is needed for a professor of applied quantum physics when trying to juggle lectures, seminars, conferences and supervision of PhD students. Not to mention her own research.<br /><br /></span><div>Right now, it's all about the relationships between thermodynamics and quantum mechanics, what is normally referred to as quantum thermodynamics. Because, as Janine puts it, &quot;if you want to make new nanotechnology, it’s really good to know the underlying dynamics. And if you want a quantum computer that works well, you need to know what the energy consumption looks like and how best keep it cold during operation.&quot;  </div> <div><br /><strong>Janine’s many engagements at the department</strong> of Microtechnology and Nanoscience become clear within minutes. We’ve already touched on her teaching, PhD supervision and research. But as of 2021 she’s also the new Director of the Nano Excellence Initiative, a government-funded and interdisciplinary initiative, that includes three other departments besides her own - chemistry, physics, biology - with the joint ambition to promote research and development of nanotechnology at the university.<br /><br /></div> <div>&quot;My goal is to create a meeting place for nano-researchers at all levels, junior as well as senior. A kind of incubator for building collaborations, sharing ideas and networking,&quot; Janine explains. </div> <div><br />But that’s not all. Janine is also one of the initiators behind the family room we’re currently in. Why so? To enable researchers to combine a successful research career with family life. An important topic to Janine. <br /><br /></div> <div>&quot;If you have small kids and you need to go to a conference or perhaps to a meeting with collaborators, and you haven’t managed to solve childcare, you might face logistical problems. Which tends to lead to researchers having to limit their work, especially female researchers. A room like this can solve that sort of problem,&quot; Janine explains.<br /><br /></div> <div>And when asked if they’ve used the family room frequently, Paolo anticipates his mum: &quot;Hundreds of times!&quot;, he proclaims contentedly and continues to build on his maze.</div> <h3 class="chalmersElement-H3">The (un)obvious researcher </h3> <div>Janine somehow feels natural in her research role and in her field. She talks enthusiastically and joyfully about her research and her students. And as the oldest in a sibling group of five and with two researching parents, a mother in physics and a father in mathematics, it may seem strange that it was never self-evident to Janine to choose a research career. However, there were never any ruling expectations in terms of career paths. It was more a matter of a family culture that said you can become what you want to be. Nevertheless, the subject of physics did come up every once in a while at the dinner table, albeit in a discouraging way. </div> <div><br /></div> <div>“During high school, I had many different ideas about what I should study - architecture, design or medicine perhaps. And right after high school, I got involved in social work for a few years before I continued my studies. But I have always been into math and physics and solving problems. At the same time, I’ve also been interested in languages. As a matter of fact, my mum actually used to warn me: behave or else I’ll make you study physics &quot;, says Janine and laughs.<br /><br /></div> <div><strong>Perhaps a classic example of reverse</strong> psychology. Either way, it seems to have worked.<br /></div> <div>And in addition to her academic merits in physics, Janine also speaks five languages. No wonder if you take a look at her academic journey. A tour that has gone all over the European continent. <br /><br /></div> <div>She grew up near Düsseldorf and moved as a 20-year-old to Karlsruhe in southern Germany to study physics. During her master's studies, she did an exchange year in Grenoble, France, after which she returns to Germany to complete her master's studies. After that, straight to Italy to do her PhD at the Scuola Normale Superiore di Pisa, on &quot;Adiabatic pumping in interacting quantum dots&quot;. It’s during her PhD studies in Pisa that Janine's fascination for quantum physics really takes off. This is also where she meets her future husband, who at the time did his PhD in astrophysics. After that: post-doc at the University of Geneva while her boyfriend heads off to Hamburg. Then back to Germany to take on the position as professor of physics at the University of Aachen. In Aachen, Janine also receives a large research grant. A turn of events that in retrospect is looked upon as a significant milestone. <br /><br /></div> <div>“This is when I got to lead my own research group for the first time. I was able to recruit PhD students and post-docs and shape my own lectures. Freedom to do it my way, as it were. That’s when the idea that I could become an independent researcher was really brought to life.”<br /><img src="/SiteCollectionImages/20210101-20210631/Janine%202.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px 10px;width:300px;height:226px" /><br /><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">Gothenburg calling</span><br /></div> <div>It’s easy to see life as a research couple travelling all over Europe through rose-tinted glasses.</div> <div>If she misses life as a round-the-clock researcher on the continent? Well, not really. </div> <div><br /></div> <div>&quot;You get fed up in the end. My husband and I had a long-distance relationship for ten years, it’s not something I recommend. Of course, it’s really fun and interesting to move around and constantly getting to know new cultures and learn new languages, but eventually it gets really hard to keep having to split up from friends and work just when you start to feel at home. Now, I’ve been in Sweden for a while, but I still feel like the dumbest parent at kindergarten. It still takes me forever to fill in even the simplest forms &quot;, she says and laughs.<br /><br /></div> <div><strong>So just over seven years ago</strong>, she finally settled down in Gothenburg and at Chalmers, at the time pregnant with the family's first child. Her significant other, who had a research position at Göttingen in Germany, was able to join up as a position opened up at the Department of Physics at Chalmers, just a stone's throw away.</div> <div>It wasn’t just coincidence that the choice fell on Chalmers. The five-year research project at RWTH Aachen had been completed and Janine and her husband had decided to stay in Europe. After some brief exploration of alternatives, she realized that Chalmers seemed to be a good place to conduct the kind of research she was particularly interested in. At the same time, she was approached by one of the professors of applied quantum physics at Chalmers at a conference, who suggested that Janine should come work with them. Said and done, Janine applied for a position as an Assistant Professor in Nanoscience at Chalmers. But she also applied for a research grant through Wallenberg Academy Fellows - Sweden's largest private career program for young researchers. It all ends up with Janine getting the position as well as the grant. And subsequently research funding for a five-year period, which since then has been extended through the Knut and Alice Wallenberg Foundation.<br /><br /></div> <div>“The Wallenberg's research grant has been really good for me in several ways. Besides funding my research, it has helped me build a good network as well as introducing me to the Swedish research environment.”<br /><br /></div> <div>But it turns out that life as a researcher at a Swedish university comes with even more perks. </div> <div><br />“Something I really liked from the beginning was that the culture here is much more equal and relaxed if you compare with, for example, some of the German universities. There, the hierarchies are very strong and the elbows sharper &quot;, says Janine.</div> <h3 class="chalmersElement-H3">The importance of good role models</h3> <div>And speaking of equality, it's almost hard not to mention the fact that Janine, as a female professor of quantum physics, stands out in the group. As a master's student, she was the only woman at the institute and at seminars. And when Janine first made her entrance into the Department of Applied Quantum Physics at Chalmers, she was once again the only woman. Today, six years later, she’s pleased to find that a third of the workforce is made up of women.<br /><br /></div> <div>There’s no doubt that academia needs good role models. Janine mentions times when female PhD students have approached her after speaks or lectures to express how much it means to see a woman – quite often with a baby under her arm - be an expert on the subject.</div> <div><br /><strong>Janine too has her own role models</strong>. She especially remembers her post-doc supervisor at the Institute of Theoretical Physics in Geneva, Professor M. Büttiker. A familiar name to many physicists. Through his humble and unpretentious style and his way of taking everyone's work seriously, regardless of position or academic rank, he has become a strong influence.<br /><br /></div> <div>&quot;To him, it didn’t matter if he was talking to a master's student or a Nobel Prize winner. He would invite his friends, people with names that we knew from our physics books. And he would introduce us as experts even though we were just post-docs. He simply took us all equally seriously. I was really inspired by him.”</div> <div><br />In that sense, it’s not very surprising that when Janine is asked to highlight her proudest moments in her career, she refers from listing academic advancements, professorships or publications. <br /><br /></div> <div>“I can’t deny that I was really proud when I finished my dissertation. But the proudest moments are probably when someone in my research group does a really good job. When a PhD student gives a really good defense on their dissertation and can continue to work on what they really like and grow as a researcher. That makes me really proud.”<br /><img src="/SiteCollectionImages/20210101-20210631/Janine%20och%20Paolo.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 10px;width:300px;height:225px" /><br /><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">From self-do</span><span style="color:rgb(33, 33, 33);font-family:inherit;font-size:16px;font-weight:600;background-color:initial">ubt to pure grit</span><br /></div> <div>We decide to relocate to Janine’s office, a few stairs up. Paolo shows the way by skipping through the corridors. Janine’s years in Pisa seems to have made an impression. Under the office shelves filled with binders, books and paper is a well-used, coffee stained Italian espresso pot. Across the room hangs a large blackboard covered with never-ending calculations in white chalk. Just as one would expect from a professor of quantum physics.<br /><br /></div> <div>But has it always been easy? Have there never been any doubts?</div> <div><br />“When I did my PhD, I really had my doubts. Will I be able to do this? Am I smart enough? I was actually very close to giving up.”<br /><br /></div> <div>But Janine's plans to throw in the towel would soon be stopped. An old friend from school came to visit and changed her outlook on things completely.</div> <div><br />“She didn’t understand why I had doubts when I always had such good grades in school.  She told me that if I had doubts about being smart enough, just keep pretending to be clever for another two years and then, once that’s done, decide what I want to do,” Janine explains and laughs.<br /><br /></div> <strong> </strong><div><strong>Whether the argument worked</strong> is unclear, but Janine rode through the storm and came out on the other side. With honors. Since then, Janine has become quite used to dealing with tricky problems. </div> <div>So, what’s her driving force? <br /><br /></div> <div>“Definitely my curiosity. I face problems that I don’t understand almost every day. But then, you talk about the problem with colleagues and do some more reading and calculating until you get it. I’ve always liked to figure things out.”</div> <div><br />It’s obvious that Janine really likes her job. That she's in the right place. To her it’s all about making choices that feel right at the moment and trusting that you somehow end up in the right place. Like many physicists at the beginning of their career, Janine too thought she would focus solely on theoretical particle physics. But over time, the plan was revised.</div> <div><br />“I really like that I can do both fundamental research with heavy theoretical method development and at the same time think about exciting technical applications. It’s really cool to be able to sit and work theoretically and have the option to just go to the lab next door and talk to people to see if my calculations are correct.”<br /><br /></div> <div><strong>From the office window you </strong>can just barely see parts of the kindergarten yard. Janine lifts Paolo to make sure he gets the same view. Is it his baby brothers they can see from a distance, jumping around on the playground? They both agree; it’s Fabian and Mattia they spot. Perhaps it's the window view that makes Janine resume the topic of proud career moments. </div> <div><br />&quot;I just have to say that I’m incredibly proud that me and my husband actually managed to make this work in the end. That we can do what we are passionate about at work and, at the same time, have a fantastic family.”<br /><br />Text by: Lovisa Håkansson</div> Thu, 24 Jun 2021 00:00:00 +0200 story of OptiGOT - from research project to tech giant <p><b>​It was all a bit hush-hush as it was announced late last fall that the small startup OptiGOT from Gothenburg had been acquired by tech giant Nvidia. And the story that started in a Chalmers’ lab sometime 20 years ago has certainly entailed some valuable lessons. We met up with two of the founders of OptiGOT, Anders Larsson and Erik Haglund, to let them tell us about milestones, success factors and challenges along the way.  This is the story of OptiGOT.</b></p><div>​<span style="background-color:initial">It was at the end of November 2020 that chip company Nvidia announced that they had acquired Gothenburg-based startup OptiGOT. The deal had been completed already in April that year but was somewhat veiled in secrecy and was only made public six months later. At the time, neither sellers nor buyers wished to comment further on the deal in media and the purchase price was kept secret. However, on OptiGOT's LinkedIn page, the company's CEO, André Kelkkanen, made it clear that they were very pleased with the sale: “To use a football metaphor: Feels amazing. We join the best team in the world and get the chance to compete to win against the best competition in the world.&quot;</span></div> <div><br /></div> <div> </div> <div><strong>At the time for the acquisition</strong>, OptiGOT had grown into a cutting-edge start-up in high-performance surface-emitting semiconductor lasers, known as vertical-cavity surface-emitting laser (VCSEL). A technology that can be used in LIDAR and for high-efficiency and very fast data transmission via fiber cable. The method is groundbreaking and crucial for advanced big data testing, evaluation and analysis and made OptiGOT highly attractive to a range of big tech companies. Among those Nvidia, that since the 90s had been market-leading in computer and game graphics and now was getting established as a global player in AI and supercomputers. However, they weren’t the only ones trying to get OptiGOT’s attention. </div> <div> </div> <div><br /></div> <div> </div> <div><img src="/en/departments/mc2/news/Documents/Anders%20Larsson%20340x305.jpg" alt="Anders Larsson 340x305.jpg" class="chalmersPosition-FloatLeft" style="margin:5px 10px;width:200px;height:200px" /><span style="background-color:initial">“In 2019 and 2020, several companies showed interest in acquiring OptiGOT. One of these was Nvidia. At that point, it was really an easy choice. Nvidia is a fantastic and large international company that is doing brilliantly. They have muscles and have for some considerable time been market-leading in graphics processors for interactive graphics and in recent years, partly through acquisitions of various companies, also become leaders in AI and IT for e.g. supercomputers, autonomous machines, cloud and data centers, healthcare and life sciences, high-performance data processing, networks and self-driving vehicles,” says Anders Larsson, professor of Photonics at the Department of Microtechnology and Nanoscience, MC2, and one of four founders of OptiGOT. </span></div> <div> </div> <div><br /></div> <div> </div> <div>Today, just over a year after the sale, the team has become part of Nvidia and has expanded to seven people, all from Chalmers, six of whom originate from the Department of Microtechnology and Nanoscience.</div> <div> </div> <h3 class="chalmersElement-H3">With roots in industrial research</h3> <div> </div> <div>MC2's lab may be regarded as the starting point as OptiGOT's journey began sometime in the mid-90s. When the research project was unbundled in 2016, OptiGOT was considered a distillate of over 20 years of VCSEL research at Chalmers. With a team consisting of eleven doctoral students and four post-docs, the research was characterized for many years by a tenacity and a focus with clear short- and long-term goals. Something that the founders themselves believe has been crucial to the company's later success. But also the many collaborations with companies all over the world that marked the research years at MC2 are believed to have prepared them well for going into business. </div> <div> </div> <div><br /></div> <div> </div> <div>&quot;Eventually we became really good at this, world leading, you might say. Since the research was applied and industrial, we started to receive requests in 2000 from various companies for help with laser design, but also with the manufacture and testing of prototypes. For many years we declined, but at the beginning of 2015 we decided to give it a chance and started delivering designs through Chalmers Ventures,&quot; explains Anders.</div> <div> </div> <div><br /></div> <div> </div> <div><span style="background-color:initial"><img src="/en/departments/mc2/news/Documents/Erik%20Haglund%20340x305.jpg" alt="Erik Haglund 340x305.jpg" class="chalmersPosition-FloatRight" style="margin:5px 10px;width:200px;height:179px" />&quot;So already from the beginning we were able to identify some potential customers and shape a model for how</span><br /></div> <div>we would sell our technology. Because of that, we didn’t need to find or create a market for our &quot;product&quot;, which is a completely different challenge,&quot; adds Erik Haglund, former PhD student at MC2 and one of the founders of OptiGOT.</div> <div> </div> <h3 class="chalmersElement-H3">The birth of OptiGOT</h3> <div> </div> <div>The decision to test the business idea in collaboration with Chalmers Ventures in early 2015 would prove to be a good one. When the collaboration shortly after generated large orders from interested customers, it felt natural to get into business for real together. In 2016 OptiGOT saw the light of day, perhaps the biggest milestone of the journey for the four founders who, in addition to Anders and Erik, also includes Johan Gustavsson, associate professor at MC2 at Chalmers, and Chalmers Ventures. Shortly thereafter, a CEO was appointed, André Kelkkanen from Chalmers Ventures who at an early stage was able to complement the technical expertise with experience from entrepreneurship, business economics and business law. Something that Anders and Erik in retrospect are convinced of has been a major success factor in OptiGOT's progress. Two years later, the company moved into its own office, entailing the opportunity to shape an independence and an identity of their own. </div> <div> </div> <div><br /></div> <div> </div> <div><img src="/en/departments/mc2/news/Documents/Logga.jpg" alt="Logga .jpg" class="chalmersPosition-FloatLeft" style="margin:5px 10px;width:200px;height:179px" />&quot;It was really cool to take part in building a startup from scratch. Just to sit down and try to come up with a good name took a while. And then everything from designing the logo and website to buying IKEA furniture for the office,&quot; says Erik.</div> <div> </div> <div><br /></div> <div> </div> <div><strong>At the same time, the business grew </strong>to such an extent that several former photonics PhD students from MC2 were able to join up and develop the company further. And soon, takeover offers began to trickle in. And the rest is history.</div> <div> </div> <div><br /></div> <div> </div> <div>The journey of OptiGOT has been marked by well-founded decisions, no doubt. But there’s one crucial factor that may be difficult to control. Timing. In OptiGOT's case, the stars turned out to be aligned also on that point. In parallel with the progress of the research project and the formation of a company, the outside world seemed to go in a favorable direction. </div> <div> </div> <div><br /></div> <div> </div> <div>&quot;As we developed the research, the market for this type of laser also developed in a positive direction. From the mid-90s until the mid-00s, the market grew and was dominated by fiber optic data cables and various types of sensors such as optical data mice, for example. Since the mid-2000s, the market has grown rapidly as data centers around the world began to manage all data traffic in the cloud with fiber optic data cables, and as the laser technology began to be used increasingly for consumer electronics such as mobile phones, in terms of  camera focus and facial recognition, and other types of sensors such as laser radar for self-driving vehicles,&quot; says Anders. </div> <div> </div> <div><br /></div> <div> </div> <div>And there’s no sign of the market for laser technology slowing down. Quite the opposite. According to a recent report from Yole, the total market for VCSEL is projected to grow from $1.1 billion to $2.7 billion from 2020 to 2027, with a corresponding growth in data communication VCSELs from $277 million to $516 million over the same time interval.</div> <div> </div> <h3 class="chalmersElement-H3">From startup to tech giant</h3> <h3 class="chalmersElement-H3"> </h3> <div>However, like all journeys this too entailed challenges along the way. Moving from a research environment in academia to life as an entrepreneur was a tangible transition. For some, it involved a part-time position in two places, one at Chalmers and one at OptiGOT. A delicate balancing act, from time to time. The transition also involved stepping into a new culture.</div> <div> </div> <div><br /></div> <div> </div> <div>&quot;It was a challenge for those of us who came from academia to realize and learn that the conditions for industrial activities are quite different from those that apply to academic research. It doesn’t always have to be the best, good enough will do in many cases. But it should be possible to produce at an acceptable cost and work, “come rain or shine,” explains Anders.</div> <div> </div> <div><br /></div> <div> </div> <div><strong>Going from a small to large global company</strong> is a transition, as well. As the sale to Nvidia was realized, the startup of six employees merged into an international company with 20,000 employees in over 30 countries.</div> <div> </div> <div><br /></div> <div> </div> <div><img src="/en/departments/mc2/news/Documents/Gäng.jpg" alt="Gäng .jpg" class="chalmersPosition-FloatRight" style="margin:5px 10px;width:200px;height:179px" />&quot;It’s mostly positive, in terms of considerably more resources and opportunities to learn things that simply weren’t possible at OptiGOT, with insight into the entire chain, from components to complete systems. At the same time, it always takes time to learn how a large organization works in regards to processes and tools,&quot; says Anders.</div> <div> </div> <div><br /></div> <div> </div> <div>The saga of OptiGOT is a success story, no doubt. The journey may have been long but has been made possible by a highly dedicated and persistent research team, an early contact with industry and a continuous access to the labs at Chalmers. So, what are the most valuable lessons to be learned along the way? </div> <div> </div> <div><br /></div> <div> </div> <div>&quot;It's super important to bring people in who know how to start a company and who can manage the finances. So that time is dedicated to both dealing with technical stuff as well as customers. And it's important to have a good lawyer who can help out with contracts, in terms of how they work and how to write them. Someone who can sort out a first draft and double-check everything,&quot; says Erik.</div> <div> </div> <div><br /></div> <div> </div> <div>And Anders agrees:  </div> <div> </div> <div><br /></div> <div> </div> <div>&quot;Yes, it’s really important to bring in non-technical skills early on, i.e. entrepreneurship, business economics and business law. And you have to be passionate about this and be prepared to put in a lot of energy, patience and time. And you need to start &quot;simple&quot; in order to investigate and understand if the idea holds up. In other words, if there seems to be a demand.&quot;</div> <div> </div>Thu, 10 Jun 2021 00:00:00 +0200