Relaxation of isolated quantum systems beyond chaos

被引：9

作者：

Garcia-Mata, Ignacio ^{[1
,2
]}

Roncaglia, Augusto J. ^{[3
,4
]}

Wisniacki, Diego A. ^{[3
,4
]}

机构：

[1] Univ Nacl Mar del Plata, CONICET, IFIMAR, Inst Invest Fis Mar del Plata, Mar Del Plata, Buenos Aires, Argentina

[2] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina

[3] Univ Buenos Aires, Dept Fis JJ Giambiagi, RA-1428 Buenos Aires, DF, Argentina

[4] Univ Buenos Aires, IFIBA, FCEyN, RA-1428 Buenos Aires, DF, Argentina

来源：

PHYSICAL REVIEW E | 2015年 / 91卷 / 01期

关键词：

PHASE-TRANSITION; THERMALIZATION; LOCALIZATION; DYNAMICS; MATRICES; ELEMENTS;

D O I：

10.1103/PhysRevE.91.010902

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

In classical statistical mechanics there is a clear correlation between relaxation to equilibrium and chaos. In contrast, for isolated quantum systems this relation is-to say the least-fuzzy. In this work we try to unveil the intricate relation between the relaxation process and the transition from integrability to chaos. We study the approach to equilibrium in two different many-body quantum systems that can be parametrically tuned from regular to chaotic. We show that a universal relation between relaxation and delocalization of the initial state in the perturbed basis can be established regardless of the chaotic nature of system.

引用

页数：5

共 40 条

[1] Quantum Chaos and Effective Thermalization [J].