Quantum quench in long-range field theories

被引：36

作者：

Rajabpour, M. A. ^{[1
]}

Sotiriadis, S. ^{[2
,3
]}

机构：

[1] Univ Fed Fluminense, Inst Fis, BR-24210346 Niteroi, RJ, Brazil

[2] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy

[3] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy

来源：

PHYSICAL REVIEW B | 2015年 / 91卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

PROPAGATION; SYSTEMS; SIMULATOR;

D O I：

10.1103/PhysRevB.91.045131

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the equilibration properties of observables in long-range field theories after the mass quench in d = 1, 2, and 3 dimensions. We classify the regimes where we expect equilibration or its absence in different dimensions. In addition, we study the effect of the initial state in the equilibration properties of our system. In the case of free field theories, we show that whenever we have equilibration, the long-time limit of correlations can be described by the generalized Gibbs ensemble. We prove that all integrals of motion in our system are nonlocal.

引用

页数：13

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