A study on the sudden death of entanglement

被引：108

作者：

Cui, H. T. ^{[1
]}

Li, K. ^{[1
]}

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

机构：

[1] Dalian Univ Technol, Dept Phys, Dalian 116024, Peoples R China

来源：

PHYSICS LETTERS A | 2007年 / 365卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

Number: 10305002,60578014, Acronym: NSFC, Sponsor: National Natural Science Foundation of China,;

D O I：

10.1016/j.physleta.2006.12.049

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics of entanglement and the phenomenon of entanglement sudden death (ESD) [T. Yu, J.H. Eberly, Opt. Commun. 264 (2006) 393] are discussed in bipartite systems, measured by Wootters concurrence. Our calculation shows that ESD appears whenever the system is open or closed and is dependent on the initial condition. The relation of the evolution of entanglement and energy transfer between the system and its surroundings is also studied. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：44 / 48

页数：5

共 20 条

[1] Entanglement from thermal blackbody radiation [J].

Braun, D .

PHYSICAL REVIEW A, 2005, 72 (06)

[2] Creation of entanglement by interaction with a common heat bath [J].

Braun, D .

PHYSICAL REVIEW LETTERS, 2002, 89 (27) :277901-277901

[3] Energy as an entanglement witness for quantum many-body systems [J].

Dowling, MR ;

Doherty, AC ;

Bartlett, SD .

PHYSICAL REVIEW A, 2004, 70 (06) :062113-1

[4] Dark periods and revivals of entanglement in a two-qubit system [J].

Ficek, Z. ;

Tanas, R. .

PHYSICAL REVIEW A, 2006, 74 (02)

[5] Energy and multipartite entanglement in multidimensional and frustrated spin models [J].

Guehne, Otfried ;

Toth, Geza .

PHYSICAL REVIEW A, 2006, 73 (05)

[6] Multipartite entanglement in spin chains -: art. no. 229 [J].

Gühne, O ;

Tóth, G ;

Briegel, HJ .

NEW JOURNAL OF PHYSICS, 2005, 7

[7] Entanglement induced by a single-mode heat environment [J].

Kim, MS ;

Lee, J ;

Ahn, D ;

Knight, PL .

PHYSICAL REVIEW A, 2002, 65 (04) :401011-401014

[8] Measurable entanglement [J].

Klyachko, A ;

Öztop, B ;

Shumovsky, AS .

APPLIED PHYSICS LETTERS, 2006, 88 (12)

[9] Role of the Bell singlet state in the suppression of disentanglement [J].

Liu, Ru-Fen ;

Chen, Chia-Chu .

PHYSICAL REVIEW A, 2006, 74 (02)

[10]

Preskill J., 1998, LECT NOTES PHYS, V229

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