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Emergent thermodynamics in a quenched quantum many-body system.

Abstract:
We study the statistics of the work done, fluctuation relations, and irreversible entropy production in a quantum many-body system subject to the sudden quench of a control parameter. By treating the quench as a thermodynamic transformation we show that the emergence of irreversibility in the nonequilibrium dynamics of closed many-body quantum systems can be accurately characterized. We demonstrate our ideas by considering a transverse quantum Ising model that is taken out of equilibrium by an instantaneous change of the transverse field.
Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atomic and Laser Physics
Role:
Author
Journal:
Physical review letters
Volume:
109
Issue:
16
Pages:
160601
Publication date:
2012-10-05
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:81dfb7dd-cdb1-409f-9024-3f29bdf3514a
Source identifiers:
356712
Local pid:
pubs:356712
Language:
English

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