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Thermalization and localization in closed quantum many-body systems

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Date and time Jan 30, 2013
from 12:10 PM to 01:00 PM
Location 60 St. George Street, MP 606
Host Arun Paramekanti

David Huse

Princeton University

First I will discuss the Eigenstate Thermalization Hypothesis (ETH), which appears to be true for the broad class of many-body quantum systems that function as heat baths and thermally equilibrate themselves under the dynamics given by their own Hamiltonian.  The one generic exception to ETH that is known is many-body Anderson localization.  We have studied a model spin chain that shows both thermalizing and localized phases, with a dynamic quantum phase transition between them that occurs even at arbitrarily high temperature.  I will highlight some of the many important differences between the two phases and describe some of our results that (roughly) locate the phase transition and constrain some of its properties.

Work in collaboration with Arijeet Pal and Vadim Oganesyan.

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Contact Phone 416-978-7135
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