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- W4384338631 abstract "We address the out-of-equilibrium dynamics arising from quantum-quench (QQ) protocols (instantaneous changes of the Hamiltonian parameters) in many-body systems within their quantum critical regime and in contact with thermal baths, homogeneously coupled to the systems. We consider two classes of QQ protocols. One of them uses the thermal bath to prepare the initial Gibbs state; then, after quenching, the thermal bath is removed and the dynamics of the system is unitary. Wealso address a more complex QQ protocol where the thermal bath is not removed after quenching, thus the quantum evolution is also driven by the interaction with the bath, which may be described by appropriate master equations for the density matrix of the system, where a further relevant time scale, or inverse decay rate, characterizes the system-bath coupling. Under these QQ protocols, the critical system develops out-of-equilibrium scaling behaviors, which extend those forisolated critical systems, by introducing further scaling variables proportional to the temperature and the decay rate associated with the thermal baths. These out-of-equilibrium scaling behaviors are checked by analyzing QQ protocols within fermionic Kitaev wires, or equivalently quantum Ising chains, supplemented with a particular modelization of thermal bath that guarantees the asymptotic thermalization within the Lindblad master equation for the dynamics of open systems." @default.
- W4384338631 created "2023-07-15" @default.
- W4384338631 creator A5001856784 @default.
- W4384338631 creator A5075361573 @default.
- W4384338631 date "2023-07-14" @default.
- W4384338631 modified "2023-09-25" @default.
- W4384338631 title "Thermal bath effects in quantum quenches within quantum critical regimes" @default.
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