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Chin. Phys. B, 2012, Vol. 21(8): 084205    DOI: 10.1088/1674-1056/21/8/084205
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

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
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.
Keywords:  distillability entanglement      distillability sudden death      realignment criterion  
Received:  20 September 2011      Revised:  23 April 2012      Accepted manuscript online: 
PACS:  42.50.Dv (Quantum state engineering and measurements)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11074072).
Corresponding Authors:  Fang Mao-Fa     E-mail:  mffang@hunnu.edu.cn

Cite this article: 

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 2012 Chin. Phys. B 21 084205

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