Critical properties of entanglement in the Dicke model with the dipole-dipole interactions

被引：5

作者：

Nie, J. ^{[1
]}

Huang, X. L. ^{[1
]}

Yi, X. X. ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 07期

关键词：

QUANTUM PHASE-TRANSITION; STATE; MATTER;

D O I：

10.1016/j.optcom.2008.12.040

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we investigate two aspects of entanglement properties of the ground state for the Dicke model with the dipole-dipole interaction between the atoms in the thermodynamic limit, and observe how they are affected by the quantum phase transition. The appearance of dipole-dipole interactions between the atoms does not change the maximum atom-field entanglement at the critical point, while it changes the maximum atom-atom entanglement at the critical point, and has an important influence on the atom-atom entanglement behavior. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1478 / 1481

页数：4

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