场与非线性介质原子相互作用模型的量子纠缠动力学特性

吕海艳; 袁伟; 侯喜文

doi:10.7498/aps.62.110301

摘要

在场和非线性介质原子相互作用模型下, 利用concurrence和约化Neumann熵两种纠缠量度, 研究推广的二项式场态和原子基态的量子纠缠动力学. 结果表明concurrence与约化Neumann熵是正关联占优势; 在合适的条件下, 纠缠在较长时间内几乎是不变的. 这有利于量子信息过程.

关键词:

The dynamical entanglement in a model of the field interacted with atoms in a nonlinear medium is studied in terms of concurrence and the reduced Neumann entropy for the generalized binomial state of the field and the ground state of atoms. It is shown that concurrence is dominantly-positively correlated with the reduced Neumann entropy. The entanglement under suitable condition is nearly unchanged for a long time. This is useful for quantum information processing.

Keywords:

作者及机构信息

1.
华中师范大学物理科学与技术学院, 武汉 430079

基金项目: 国家自然科学基金资助 (批准号: 11174099) 资助的课题.

Authors and contacts

Yan Yuan,
Wei Hou,

1.
College of physical science and techonoloy, Huazhong Normal University, Wuhan 430079, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 11174099).

参考文献

[1]	Wootters K W 1998 Phys. Rev. Lett. 80 2245
[2]	Vidal G, Werner F R 2002 Phys. Rev. A 65 032314
[3]	Sudheesh C, Lakshmibala S, Balakrishnan V 2006 J. Phys. B 39 3345
[4]	Hou X W, Cheng C M 2009 Chin. Phys. B 18 2719
[5]	Zhai L J, Zheng Y J, Ding S L 2012 Chin. Phys. B 21 070503
[6]	Qi L N, Zhang S 2009 Acta. Phys. Sin. 58 4630 (in Chinese) [齐琳娜, 张寿 2009 物理学报 58 4630]
[7]	Xia J P, Ren X Z, Cong H L, Wang X W, He S 2012 Acta. Phys. Sin. 61 014208 (in Chinese) [夏建平, 任学藻, 从红璐, 王旭文, 贺树 2012 物理学报 61 014208]
[8]	Cui C C, Xie S Y, Yang Y P 2012 Acta. Phys. Sin. 61 124206 (in Chinese) [崔丛丛, 谢双媛, 羊亚平 2012 物理学报 61 124206]
[9]	Chen K, Albeverio S, Fei S M 2005 Phys. Rev. Lett. 95 040504
[10]	Franco R L, Compagno G, Messina A, Napoli A 2012 Phys. Lett. A 374 2235
[11]	Chen K, Wu L A 2002 Phys. Lett. A 306 14
[12]	Li Z J, Li J Q, Jin Y H, Nie Y H 2007 J. Phys. B 40 3401
[13]	Hou X W, Chen J H, Wan M F, Ma Z Q 2008 Eur. Phys. J. D 49 37
[14]	Hou X W, Wan M F, Ma Z Q 2009 Phys. Rev. A 79 022308
[15]	Masanes L 2006 Phys. Rev. Lett. 96 150501
[16]	Hou X W, Wan M F, Ma Z Q 2012 Eur. Phys. J. D 66 152
[17]	Hou X W, Wan M F, Ma Z Q 2012 Chin. Phys. B 21 103301

施引文献

[1]	Wootters K W 1998 Phys. Rev. Lett. 80 2245
[2]	Vidal G, Werner F R 2002 Phys. Rev. A 65 032314
[3]	Sudheesh C, Lakshmibala S, Balakrishnan V 2006 J. Phys. B 39 3345
[4]	Hou X W, Cheng C M 2009 Chin. Phys. B 18 2719
[5]	Zhai L J, Zheng Y J, Ding S L 2012 Chin. Phys. B 21 070503
[6]	Qi L N, Zhang S 2009 Acta. Phys. Sin. 58 4630 (in Chinese) [齐琳娜, 张寿 2009 物理学报 58 4630]
[7]	Xia J P, Ren X Z, Cong H L, Wang X W, He S 2012 Acta. Phys. Sin. 61 014208 (in Chinese) [夏建平, 任学藻, 从红璐, 王旭文, 贺树 2012 物理学报 61 014208]
[8]	Cui C C, Xie S Y, Yang Y P 2012 Acta. Phys. Sin. 61 124206 (in Chinese) [崔丛丛, 谢双媛, 羊亚平 2012 物理学报 61 124206]
[9]	Chen K, Albeverio S, Fei S M 2005 Phys. Rev. Lett. 95 040504
[10]	Franco R L, Compagno G, Messina A, Napoli A 2012 Phys. Lett. A 374 2235
[11]	Chen K, Wu L A 2002 Phys. Lett. A 306 14
[12]	Li Z J, Li J Q, Jin Y H, Nie Y H 2007 J. Phys. B 40 3401
[13]	Hou X W, Chen J H, Wan M F, Ma Z Q 2008 Eur. Phys. J. D 49 37
[14]	Hou X W, Wan M F, Ma Z Q 2009 Phys. Rev. A 79 022308
[15]	Masanes L 2006 Phys. Rev. Lett. 96 150501
[16]	Hou X W, Wan M F, Ma Z Q 2012 Eur. Phys. J. D 66 152
[17]	Hou X W, Wan M F, Ma Z Q 2012 Chin. Phys. B 21 103301

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