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Sudden change of the thermal contact between two quantum systems PDF Imprimer Envoyer

Le 14 janvier 2010, à 11h

Juliana Restrepo (LPTMC)

We address the issue of the stability of thermal equilibrium of large quantum systems with respect to variations of the thermal contact between them. We study the Schrodinger time evolution of a free bosonic field in two coupled one dimensional cavities after a sudden change of the contact between the cavities. Though the coupling we consider is thermodynamically small, modifying it has a considerable impact on the two-point correlation functions of the system.