Emergent thermodynamics in a quenched quantum many-body system
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Date
2012
Authors
Dorner, Ross
Goold, John
Cormick, Cecilia
Paternostro, Mauro
Vedral, Vlatko
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Publisher
American Physical Society
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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.
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Keywords
Free energy differences , Fluctuation theorem , Foundations , Dynamics , Entropy
Citation
Dorner, R., Goold, J., Cormick, C., Paternostro, M. and Vedral, V. (2012) 'Emergent thermodynamics in a quenched quantum many-body system', Physical Review Letters, 109(16), 160601 (5pp). doi: 10.1103/PhysRevLett.109.160601
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© 2012, American Physical Society