Exploring local quantum many-body relaxation by atoms in optical superlattices

Cramer, M., Flesch, A., McCulloch, I. P., Schollwock, U. and Eisert, J. (2008) Exploring local quantum many-body relaxation by atoms in optical superlattices. Physical Review Letters, 101 6: Article Number: 063001. doi:10.1103/PhysRevLett.101.063001

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Author Cramer, M.
Flesch, A.
McCulloch, I. P.
Schollwock, U.
Eisert, J.
Title Exploring local quantum many-body relaxation by atoms in optical superlattices
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2008-08-08
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.101.063001
Open Access Status File (Publisher version)
Volume 101
Issue 6
Start page Article Number: 063001
Total pages 4
Editor G. Basbas
J. Sandweiss
R. B. Schuhmann
S. G. Brown
Place of publication College Park, Maryland, USA
Publisher American Physical Society
Collection year 2009
Language eng
Subject C1
970102 Expanding Knowledge in the Physical Sciences
020603 Quantum Information, Computation and Communication
Abstract We establish a setting—atoms in optical superlattices with period 2—in which one can experimentally probe signatures of the process of local relaxation and apparent thermalization in nonequilibrium dynamics without the need of addressing single sites. This opens up a way to explore the convergence of subsystems to maximum entropy states in quenched quantum many-body systems with present technology. Remarkably, the emergence of thermal states does not follow from a coupling to an environment but is a result of the complex nonequilibrium dynamics in closed systems. We explore ways of measuring the relevant signatures of thermalization in this analogue quantum simulation of a relaxation process, exploiting the possibilities offered by optical superlattices.
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Mathematics and Physics
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Citation counts: TR Web of Science Citation Count  Cited 86 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 78 times in Scopus Article | Citations
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Created: Wed, 11 Mar 2009, 16:19:17 EST by Jo Hughes on behalf of School of Mathematics & Physics