Nonequilibrium Dynamics of Coupled Quantum Systems

Details Nonequilibrium Dynamics of Coupled Quantum Systems Nonequilibrium Dynamics of Coupled Quantum Systems

2002-06-03

arxiv.org/abs/hep-th/0206022v3

Physica A326 (2003) 159-188

Physics

High Energy Physics

High Energy Physics - Theory

49 pages, 3 figures, with corrections (sec. 4) to the published version

Scientific paper

10.1016/S0378-4371(03)00274-7

The nonequilibrium dynamics of coupled quantum oscillators subject to different time dependent quenches are analyzed in the context of the Liouville-von Neumann approach. We consider models of quantum oscillators in interaction that are exactly soluble in the cases of both sudden and smooth quenches. The time evolution of number densities and the final equilibration distribution for the problem of a quantum oscillator coupled to an infinity set of other oscillators (a bath) are explicitly worked out.

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