TY - JOUR
T1 - Restricted thermalization for two interacting atoms in a multimode harmonic waveguide
AU - Yurovsky, V. A.
AU - Olshanii, M.
PY - 2010/4/30
Y1 - 2010/4/30
N2 - 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 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 šeba billiard, and we conjecture the absence of a complete thermalization to be a generic property of integrable quantum systems perturbed by a nonintegrable but well-localized perturbation.
AB - 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 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 šeba billiard, and we conjecture the absence of a complete thermalization to be a generic property of integrable quantum systems perturbed by a nonintegrable but well-localized perturbation.
UR - http://www.scopus.com/inward/record.url?scp=77951716339&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.81.043641
DO - 10.1103/PhysRevA.81.043641
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AN - SCOPUS:77951716339
SN - 1050-2947
VL - 81
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 043641
ER -