Händelser: Kemi- och bioteknikhttp://www.chalmers.se/sv/om-chalmers/kalendariumAktuella händelser på Chalmers tekniska högskolaTue, 26 Jan 2021 15:00:52 +0100http://www.chalmers.se/sv/om-chalmers/kalendariumhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation,-Alexander-Zether,-Energi-och-Material.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation,-Alexander-Zether,-Energi-och-Material.aspxExjobbspresentation, Alexander Zether, Energi och Material<p></p><p>​Sorption of 60Co onto bentonite clay​</p>​​The presentation can be viewed through Zoom: <span style="font-size:11pt;font-family:calibri, sans-serif"> </span><span style="font-size:11pt;font-family:calibri, sans-serif"><a href="https://chalmers.zoom.us/j/64631265502"><span lang="EN-GB">https://chalmers.zoom.us/j/64631265502</span></a></span><br />Password: <span lang="EN-GB" style="font-size:11pt;font-family:calibri, sans-serif">877174</span><br /> <br /> Please turn off your own camera and microphone when joining by link.https://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Oskar-Leinonen,-Kemi-och-biokemi.aspxhttps://www.chalmers.se/sv/institutioner/chem/kalendarium/Sidor/Exjobbspresentation-Oskar-Leinonen,-Kemi-och-biokemi.aspxExjobbspresentation: Oskar Leinonen, Kemi och biokemi<p></p><p>​Parameter Transfer for Variational Quantum Algorithms on Near-Term Quantum Computers - An assessment of performance for potential energy surface calculations</p><div>    </div> <div>Abstrakt<br />Quantum computers show great potential for revolutionizing our ability to perform certain calculations. It has already been shown that current Noisy Intermediate-Scale Quantum (NISQ) computers can outperform conventional computers for some artificial problems. One area that would benefit strongly from quantum computations is quantum chemistry. The Variational Quantum Eigensolver (VQE) algorithm is a quantum chemistry algorithm suitable for contemporary NISQ devices. VQE optimizes a parameterized wavefunction ansatz to find the ground state energy of a molecule. In this thesis, the idea of using the optimal parameters of one molecular geometry as an initial guess for similar geometries is assessed. A significant speedup is obtained in the case of an ideal quantum computer. However, addition of noise to the simulation decreases the gain in computational speed and potentially causes the parameter transfer scheme to reduce accuracy. Furthermore, the results show that the effectiveness of parameter transfer is highly dependent on the choice of classical optimizer, which also has a huge impact on the overall performance of the VQE algorithm.</div> <div> </div> <div>Examinator:  Martin Rahm</div> <div> </div>https://www.chalmers.se/sv/styrkeomraden/produktion/kalendarium/Sidor/Produktion-i-rymden.aspxhttps://www.chalmers.se/sv/styrkeomraden/produktion/kalendarium/Sidor/Produktion-i-rymden.aspxProduktion i rymden<p>RunAn, conference hall, Chalmersplatsen 1, Kårhuset</p><p> </p>​Den nya rymdåldern är här! Det tar vi fasta på i årets initiativseminarium som spinner vidare på 50-årsfirandet av månlandningen.​​<div><span style="background-color:initial">Hur tillverkar man för rymden? Vad forskar man på i rymden? Kan man tillverka produkter på Mars? Och hur bidrar Chalmers till rymdteknik och forskning? Det är några av de frågor vi kommer att lyfta under temat: Produktion i rymden.<br /></span> ​</div>https://www.chalmers.se/sv/styrkeomraden/energi/kalendarium/Sidor/The-2nd-International-Conference-on-Negative-CO2-Emissions.aspxhttps://www.chalmers.se/sv/styrkeomraden/energi/kalendarium/Sidor/The-2nd-International-Conference-on-Negative-CO2-Emissions.aspxFRAMSKJUTET: The 2nd International Conference on Negative CO2 Emissions<p>Chalmers Kårhus, Campus Johanneberg</p><p>​The 2nd International Conference on Negative CO2 Emissions will be held May 18-21, 2021, at Chalmers University of Technology, Gothenburg, Sweden. The purpose of this conference series is to bring together a wide range of scientists, experts and stakeholders, in order to engage in various aspects of research relating to negative CO2 emissions. This will include various negative emission technologies, climate modelling, climate policies and incentives. The main topics of the conference, around which the sessions will be built, include:</p><span class="text-normal page-content"><ul><li><span style="background-color:initial">Biospheric storage</span><br /></li> <li>Cross-cutting sessions</li> <li>Direct air capture</li> <li>Enhanced weathering</li> <li>Modeling</li> <li><span style="background-color:initial">Ocean alkalization</span></li></ul> <div><div><span style="font-weight:700">Background</span></div> <div>The objective of the Paris Agreement is to limit global warming to well below 2ºC, and to pursue efforts to limit the temperature increase to 1.5ºC. The carbon budget is the amount of carbon dioxide that we can emit while still limiting global temperature rise to a given level, for example 1.5ºC.</div></div> <div><br /></div> <div><span style="background-color:initial"></span><span style="font-weight:700">Read more and sign up to the conference:</span><br /><a href="http://negativeco2emissions2020.com/"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />The 2nd International Conference on Negative CO2 Emissions​</a><br /></div> <div><br /></div></span>