多模谐振波导中相互作用双原子的限制热态化
Restricted Thermalization for Two Interacting Atoms in a Multimode Harmonic Waveguide
摘要：
在这篇文章中，我们研究了由两个原子组成的系统在一个圆形的，横向谐波波导在多模区的热可化性。虽然显示出量子混沌行为的一些特征，但即使当原子之间的相互作用无限强时，系统也无法从初始状态松弛到热平衡。我们将这种现象与先前解决的Seba台球中完全量子混沌的不可达性[P.Seba，Phys.Rev.Lett.，64，1855（1990）]，我们推测，不存在一个完整的热化是一个通用的性质的可积量子系统扰动的不可积，但良好的本地化扰动。
英文摘要：
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.
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