Entanglement decoherence of two-particle entangled states in a noisy environment

被引：24
|
作者：
Xiang, SH [1 ]
Song, KH
机构：
[1] Huaihua Univ, Dept Phys & Elect Informat Sci, Huaihua 418008, Peoples R China
[2] Huaihua Univ, Inst Informat Sci, Huaihua 418008, Peoples R China
来源：
ACTA PHYSICA SINICA | 2006年 / 55卷 / 02期
关键词：
thermal bath; coherence-preserving state; fragile entangled state; input-output fidelity;
D O I：
10.7498/aps.55.529
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Entanglement decoherence of two particles interacting with the same environment is investigated by means of concurrence and the input-output fidelity. It is found that the entangled states of two-particle system can be divided into two kinds, coherence-preserving states and fragile entangled states. The dynamics of entanglement decoherence for fragile entangled states is discussed by taking into account the ohmic dissipation under the low temperature approximation.
引用
收藏
页码：529 / 534
页数：6
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