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

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

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

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