Dynamical thermalization of interacting fermionic atoms in a Sinai-oscillator trap
arXiv:1907.06711 · doi:10.3390/condmat4030076
Abstract
We study numerically the problem of dynamical thermalization of interacting cold fermionic atoms placed in an isolated Sinai-oscillator trap. This system is characterized by a quantum chaos regime for one-particle dynamics. We show that for a many-body system of cold atoms the interactions, with a strength above a certain quantum chaos border given by the Aberg criterion, lead to the Fermi-Dirac distribution and relaxation of many-body initial states to the thermalized state in absence of any contact with a thermostate. We discuss the properties of this dynamical thermalization and its links with the Loschmidt-Boltzmann dispute.
arXiv commentcontribution to the Special Issue in memory of Shmuel Fishman to appear at MDPI Condensed Matter journal; 28 pages, 15+1 figs
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