Nonequilibrium dynamics of coupled quantum systems

G. Flores-Hidalgo and Rudnei O. Ramos

Physica A: Statistical Mechanics and its Applications, 2003, vol. 326, issue 1, 159-188

Abstract: 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, the final equilibration temperature and equilibration time for the problem of a quantum oscillator coupled to an infinity set of other oscillators (a bath) are explicitly worked out.

Keywords: Nonequilibrium; Thermalization; Liouville–von Neumann (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:326:y:2003:i:1:p:159-188

DOI: 10.1016/S0378-4371(03)00274-7

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