Influence of intrinsic decoherence on entanglement in two-qubit quantum Heisenberg XYZ chain

被引：16

作者：

Shao, B ^{[1
]}

Zeng, TH ^{[1
]}

Zou, J ^{[1
]}

机构：

[1] Beijing Inst Technol, Dept Phys, Beijing 100081, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2005年 / 44卷 / 02期

关键词：

entanglement; intrinsic decoherence; Heisenberg chain;

D O I：

10.1088/6102/44/2/255

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Taking the intrinsic decoherence effect into account, we investigate the time evolution of entanglement for two-qubit XYZ Heisenberg model in an external uniform magnetic field. Concurrence, the measurement of entanglement, is calculated. We show how the intrinsic decoherence modifies the time evolution of the entanglement and find that at short-time case, concurrence is oscillating as increasing magnetic field, which implies that entanglement may be enhanced or weakened in some time regions.

引用

页码：255 / 258

页数：4

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