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Physics Colloquium: "Infinite Temperature Quantum Mechanics: How short quantum circuits lead to the breakdown of statistical physics and other stories about many-body localization"

Event Type
Seminar/Symposium
Sponsor
Department of Physics
Location
141 Loomis
Date
Jan 31, 2018   4:00 pm  
Speaker
Bryan Clark, University of Illinois at Urbana-Champaign
Contact
Stephanie Johansson
E-Mail
sjohanss@illinois.edu
Phone
217-300-4241
Views
24
Originating Calendar
Physics - Colloquium

In our first course on statistical mechanics, we learn that small subsystems equilibrate to the temperature of their surroundings.  Surprisingly, their is another option. There are Hamiltonian's, called many-body localized, whose subsystems don't equilibrate even at infinite "temperature." In this talk, I will unpack these statements and explain how quantum circuits and entanglement give us a lens through which we can understand this phenomena. I will then show how we should start thinking about the transition between the many-body localized phase and the more canonical ergodic phase.

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