Distillability sudden death in a two qutrit systems under a thermal reservoir

doi:10.1088/1674-1056/21/8/084205

中国物理B ›› 2012, Vol. 21 ›› Issue (8): 84205-084205.doi: 10.1088/1674-1056/21/8/084205

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Distillability sudden death in a two qutrit systems under a thermal reservoir

黄江, 方卯发, 杨百元, 刘翔

Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, and Department of Physics, Hunan Normal University, Changsha 410081, China

收稿日期:2011-09-20 修回日期:2012-04-23 出版日期:2012-07-01 发布日期:2012-07-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11074072).

Distillability sudden death in a two qutrit systems under a thermal reservoir

Huang Jiang (黄江), Fang Mao-Fa (方卯发), Yang Bai-Yuan (杨百元), Liu Xiang (刘翔)

Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, and Department of Physics, Hunan Normal University, Changsha 410081, China

Received:2011-09-20 Revised:2012-04-23 Online:2012-07-01 Published:2012-07-01
Contact: Fang Mao-Fa E-mail:mffang@hunnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11074072).

摘要/Abstract

摘要： The dynamics of distillability entanglement between qutrit-qutrit systems interacted with a thermal reservoir is investigated in this paper. We discovered an interesting phenomenon that under a thermal reservoir certain initially prepared free-entangled states become bound-entangled states in a finite time which is called distillability sudden death (DSD). We use realignment criterion to measure the nine-dimensional density matrix of the entanglement. Moreover, we analyze some other parameters to investigate the effects to the systems, the explanations are given, too.

关键词: distillability entanglement, distillability sudden death, realignment criterion

Abstract: The dynamics of distillability entanglement between qutrit-qutrit systems interacted with a thermal reservoir is investigated in this paper. We discovered an interesting phenomenon that under a thermal reservoir certain initially prepared free-entangled states become bound-entangled states in a finite time which is called distillability sudden death (DSD). We use realignment criterion to measure the nine-dimensional density matrix of the entanglement. Moreover, we analyze some other parameters to investigate the effects to the systems, the explanations are given, too.

Key words: distillability entanglement, distillability sudden death, realignment criterion

中图分类号: (Quantum state engineering and measurements)

42.50.Dv

黄江, 方卯发, 杨百元, 刘翔. Distillability sudden death in a two qutrit systems under a thermal reservoir[J]. 中国物理B, 2012, 21(8): 84205-084205.

Huang Jiang (黄江), Fang Mao-Fa (方卯发), Yang Bai-Yuan (杨百元), Liu Xiang (刘翔). Distillability sudden death in a two qutrit systems under a thermal reservoir[J]. Chin. Phys. B, 2012, 21(8): 84205-084205.

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Distillability sudden death in a two qutrit systems under a thermal reservoir

Distillability sudden death in a two qutrit systems under a thermal reservoir

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