Restricted Thermalization for Two Interacting Atoms in a Multimode Harmonic Waveguide

Autor:	Yurovsky, V. A., Olshanii, M.
Rok vydání:	2010
Předmět:	Physics - Atomic Physics Physics - General Physics
Zdroj:	Phys. Rev. A 81, 043641 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.81.043641
Popis:	In this article, we study the thermalizability of a system consisting of two atoms in a circular, transversely harmonic waveguide in the multimode regime. While showing some signatures of the quantum-chaotic behavior, the system fails to reach a thermal equilibrium in a relaxation from an initial state, even when the interaction between the atoms is infinitely strong. We relate this phenomenon to the previously addressed unattainability of a complete quantum chaos in the Seba billiard [P. Seba, Phys. Rev. Lett., 64, 1855 (1990)], and we conjecture the absence of a complete thermalization to be a generic property of integrable quantum systems perturbed by a non-integrable but well localized perturbation. Comment: Two LATeX files, the main text and the supplement
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1001.0225 Zobrazit plný text záznamu View this record from Arxiv