Bulletin of the American Physical Society
APS March Meeting 2015
Volume 60, Number 1
Monday–Friday, March 2–6, 2015; San Antonio, Texas
Session Z36: Focus Session: Non-equilibrium Dynamics in Quantum Systems
11:15 AM–2:15 PM,
Friday, March 6, 2015
Sponsoring Unit: DAMOP
Chair: Stefan Natu, University of Maryland, College Park
Abstract ID: BAPS.2015.MAR.Z36.10
Abstract: Z36.00010 : Does the eigenstate thermalization hypothesis hold for non-local operators?
1:27 PM–1:39 PM
James R. Garrison
The eigenstate thermalization hypothesis (ETH) posits that given a single finite energy density eigenstate of a Hamiltonian, the expectation values of certain operators will match the values they would take in the canonical ensemble. Although ETH does not hold in all systems (notable exceptions include those that are integrable or exhibit many-body localization), even in systems where it does hold it is not obvious for which class of operators it is satisfied. Here, we study a non-integrable spin model via exact diagonalization and employ some general arguments to better understand which non-local operators satisfy or fail to satisfy ETH.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2015.MAR.Z36.10
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