Dynamics of quantum entanglement in the reservoir with memory effects

Autor:	Hao, Xiang, Sha, Jinqiao, Sun, Jian, Zhu, Shiqun
Rok vydání:	2012
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1088/0253-6102/57/1/06
Popis:	The non-Markovian dynamics of quantum entanglement is studied by the Shabani-Lidar master equation when one of entangled quantum systems is coupled to a local reservoir with memory effects. The completely positive reduced dynamical map can be constructed in the Kraus representation. Quantum entanglement decays more slowly in the non-Markovian environment. The decoherence time for quantum entanglement can be markedly increased by the change of the memory kernel. It is found out that the entanglement sudden death between quantum systems and entanglement sudden birth between the system and reservoir occur at different instants. Comment: 14 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1208.1552 Zobrazit plný text záznamu View this record from Arxiv