Dynamics of relaxation and fluctuations of the equilibrium state in an incompletely chaotic system

Vladimir A. Yurovsky, Abraham Ben-Reuven, Maxim Olshanii

Research output: Contribution to journalArticlepeer-review

Abstract

An incompletely chaotic system, with a perturbation of the integrable part that does not obey selection rules, relaxes to an equilibrium state that lies between the initial state and thermal equilibrium. We analyze here a system of two atoms in a circular transversally harmonic waveguide. The dynamics of expectation values of generic observables and their fluctuations in the long-time limit are studied for this model. The relaxation demonstrates a nonexponential behavior and slows down as the initial-state energy increases. The fluctuation amplitude has a tendency to decrease with an increase of the initial state width.

Original languageEnglish
Pages (from-to)5340-5346
Number of pages7
JournalJournal of Physical Chemistry B
Volume115
Issue number18
DOIs
StatePublished - 12 May 2011

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