The relation between the entanglement of two atoms and the entanglement of two-mode fields

被引：6

作者：

Xiong Heng-Na

Hong, Guo ^{[1
]}

Jian, Jiang

Jun, Chen

Tang Li-Yan

机构：

[1] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China

[2] Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China

[3] Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China

来源：

ACTA PHYSICA SINICA | 2006年 / 55卷 / 06期

关键词：

D O I：

10.7498/aps.55.2720

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By means of negativity and concurrence, we investigate the time evolution of the entanglement of the two atoms and the entanglement between the two modes in the system of two atoms interacting with two-mode fields. We find the two entanglements can swap with each other, and they have a very good coincidence relation under certain conditions. In two -qubit system, negativity and concurrence in the same range can keep identical with each other on the standard of the existence of entanglement, but they may not always keep pace with each other for mixed states of the system.

引用

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页码：2720 / 2725

页数：6

共 21 条

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