Emergent thermodynamics in a quenched quantum many-body system

Abstract

We study the statistics of the work done, the fluctuation relations and the 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 the instantaneous switching of the transverse field.

6 pages, 1 figure

References in corpus (5)

• Fluctuation theorems: Work is not an observable
• The Statistics of the Work Done on a Quantum Critical System by Quenching a Control Parameter
• Generalized Clausius inequality for nonequilibrium quantum processes
• Microscopic expression for the heat in the adiabatic basis
• Work fluctuations in quantum spin chains

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