Emergent thermodynamics in a quenched quantum many-body system

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Emergent thermodynamics in a quenched quantum many-body system

Dorner, Ross; Goold, John; Cormick, Cecilia; Paternostro, Mauro; Vedral, Vlatko
Date: 2012
Copyright: © 2012, American Physical Society
Related: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.109.160601
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
Published Version: 10.1103/PhysRevLett.109.160601

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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