Entanglement and its evolution following a quench in the presence of an energy current

被引：6

作者：

Das, Anirban ^{[1
,2
,3
]}

Garnerone, Silvano ^{[3
,4
]}

Haas, Stephan ^{[1
,2
,3
]}

机构：

[1] Univ So Calif, Dept Phys, Los Angeles, CA 90089 USA

[2] Univ So Calif, Dept Astron, Los Angeles, CA 90089 USA

[3] Univ So Calif, Ctr Quantum Informat Sci & Technol, Los Angeles, CA 90089 USA

[4] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada

来源：

PHYSICAL REVIEW A | 2011年 / 84卷 / 05期

关键词：

FIELD; MODEL; STATE;

D O I：

10.1103/PhysRevA.84.052317

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the Ising spin chain with a Dzyaloshinskii-Moriya interaction, focusing on the static and dynamic properties of the entanglement entropy following a quantum quench. We show that the effects of the additional anisotropic interaction on the phase diagram and on the dynamics of the system are captured by the properties of the entanglement entropy. In particular, the model provides a way to study the quench dynamics in a system with an energy current. We consider quenches starting from an initial excited state of the Ising spin chain, and we analyze the effects of different initial conditions.

引用

页数：8

共 33 条

[1] Entanglement entropy of excited states [J].

Alba, Vincenzo ;

Fagotti, Maurizio ;

Calabrese, Pasquale .

JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, 2009,

[2] Entanglement of Low-Energy Excitations in Conformal Field Theory [J].

Alcaraz, Francisco Castilho ;

Ibanez Berganza, Miguel ;

Sierra, German .

PHYSICAL REVIEW LETTERS, 2011, 106 (20)

[3] Entanglement in many-body systems [J].

Amico, Luigi ;

Fazio, Rosario ;

Osterloh, Andreas ;

Vedral, Vlatko .

REVIEWS OF MODERN PHYSICS, 2008, 80 (02) :517-576

[4] Nonequilibrium steady state in a quantum system: One-dimensional transverse ising model with energy current [J].

Antal, T ;

Racz, Z ;

Sasvari, L .

PHYSICAL REVIEW LETTERS, 1997, 78 (02) :167-170

[5] Electron spin resonance in the spin-1/2 quasi-one-dimensional antiferromagnet with Dzyaloshinskii-Moriya interaction BaCu2Ge2O7 -: art. no. 057203 [J].

Bertaina, S ;

Pashchenko, VA ;

Stepanov, A ;

Masuda, T ;

Uchinokura, K .

PHYSICAL REVIEW LETTERS, 2004, 92 (05) :4

[6] Many-body physics with ultracold gases [J].

Bloch, Immanuel ;

Dalibard, Jean ;

Zwerger, Wilhelm .

REVIEWS OF MODERN PHYSICS, 2008, 80 (03) :885-964

[7] Time dependence of correlation functions following a quantum quench [J].

Calabrese, P ;

Cardy, J .

PHYSICAL REVIEW LETTERS, 2006, 96 (13)

[8] Entanglement entropy and quantum field theory [J].

Calabrese, P ;

Cardy, J .

JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, 2004,

[9] Generalized Thermalization in an Integrable Lattice System [J].

Cassidy, Amy C. ;

Clark, Charles W. ;

Rigol, Marcos .

PHYSICAL REVIEW LETTERS, 2011, 106 (14)

[10] Detection and measurement of the Dzyaloshinskii-Moriya interaction in double quantum dot systems [J].

Chutia, Sucismita ;

Friesen, Mark ;

Joynt, Robert .

PHYSICAL REVIEW B, 2006, 73 (24)

← 1 2 3 4 →