51社区黑料

CAP Seminar

L’entropie en physique quantique (sans la mort de l’univers).

Prof. Thomas Baker, Universit茅 de Montr茅al
Location: Online and SSB7172

Friday, 24 March 2023 08:30AM PDT
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Zoom Link will be released here on March 24: 


https://services.cap.ca/lecture_tour/detail.php?id=233&lrow=0

Synopsis

Abstract

Le concept d'entropie d'un syst猫me physique est fondamental en physique statistique et quantique. Plusieurs m茅thodes existent pour d茅river l鈥檈xpression de l鈥檈ntropie. Selon la deuxi猫me loi de la thermodynamique, l鈥檈ntropie doit toujours augmenter. C鈥檈st un concept important pour la mort thermique de l鈥檜nivers. La d茅finition originale de l鈥檈ntropie provient du cycle de Carnot; cependant, l鈥檌nformation quantique nous en offre une d茅finition fondamentale. Aujourd鈥檋ui, l鈥檈ntropie peut caract茅riser un syst猫me quantique et nous aider 脿 r茅soudre des probl猫mes quantiques. Dans cette conf茅rence, je vais pr茅senter l鈥檈ntropie dans le contexte de la physique quantique avec la d茅finition du Shannon et discuter les algorithmes de r茅seaux des tenseurs qui utilisent l鈥檈ntropie 脿 cette fin.


Short bio

Thomas Baker is an Assistant Professor in the Department of Physics & Astronomy and also the Department of Chemistry at the University of Victoria in British Columbia, Canada. He earned a M.Sc. from California State University, Long Beach where he graduated on the Dean鈥檚 List of Scholars and Artists and held a graduate research fellowship. He earned a Ph.D. from the University of California, Irvine with the support of the Achievement Rewards for College Scientists (ARCS) fellowship before he was the Prized Postdoctoral Scholar in Quantum Sciences and Technology at Institut quantique at l鈥橴niversit茅 de Sherbrooke. He recently was a Fulbright U.S. Scholar at the University of York in the United Kingdom. Thomas鈥檚 research interests are widespread in the field of quantum computing. He is interested in how to make quantum computers and design quantum materials for qubits and quantum error-correction. He also develops new algorithms for quantum chemistry on the quantum computer. Many times, numerical examples are produced in a custom-built tensor network library called DMRjulia, but other techniques are also used.