Emergent thermodynamics in a quenched quantum many-body system
  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. 
Ross Dorner, John Goold, Cecilia Cormick, Mauro Paternostro and Vlatko   Vedral
cond-mat.stat-mech quant-ph