Distillability sudden death in a two qutrit systems under a thermal reservoir |
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Authors: | Huang Jiang Fang Mao-Fa Yang Bai-Yuan Liu Xiang |
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Institution: | Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, and Department of Physics, Hunan Normal University, Changsha 410081, China |
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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. |
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Keywords: | distillability entanglement distillability sudden death realignment criterion |
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