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Nonequilibrium dynamics of coupled quantum systems

✍ Scribed by G. Flores-Hidalgo; Rudnei O. Ramos

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
319 KB
Volume
326
Category
Article
ISSN
0378-4371

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✦ Synopsis

The nonequilibrium dynamics of coupled quantum oscillators subject to di erent timedependent 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 ΓΏnal equilibration temperature and equilibration time for the problem of a quantum oscillator coupled to an inΓΏnity set of other oscillators (a bath) are explicitly worked out.

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