Quantum quenches in the transverse field Ising chain: II. Stationary state properties

被引：231
作者：
Calabrese, Pasquale [1 ,2 ]
Essler, Fabian H. L. [3 ]
Fagotti, Maurizio [3 ]
机构：
[1] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy
[2] Ist Nazl Fis Nucl, I-56127 Pisa, Italy
[3] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England
来源：
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT | 2012年
基金：
英国工程与自然科学研究理事会;
关键词：
correlation functions; exact results; stationary states; STATISTICAL-MECHANICS; INFORMATION-THEORY; RELAXATION; ENTANGLEMENT; DYNAMICS; MODEL;
D O I：
10.1088/1742-5468/2012/07/P07022
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We consider the stationary state properties of the reduced density matrix as well as spin-spin correlation functions after a sudden quantum quench of the magnetic field in the transverse field Ising chain. We demonstrate that stationary state properties are described by a generalized Gibbs ensemble. We discuss the approach to the stationary state at late times.
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页数：36
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