期刊论文详细信息
OPTICS COMMUNICATIONS 卷:283
Entanglement dynamics of two-bipartite system under the influence of dissipative environments
Article
Bougouffa, Smail1,2 
[1] Taibah Univ, Fac Sci, Dept Phys, Madinah, Saudi Arabia
[2] KACST, Natl Ctr Math & Phys, Riyadh 11442, Saudi Arabia
关键词: Quantum entanglement;    Entanglement dynamics;    Bipartite entangled state;    Concurrence;    Logarithmic negativity;    Filed damping;    Dissipative environments;   
DOI  :  10.1016/j.optcom.2010.03.029
来源: Elsevier
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【 摘 要 】

An experimental scheme is suggested that permits a direct measure of entanglement in a two-qubit cavity system. It is realized in the cavity-QED technology utilizing atoms as flying qubits. With this scheme we generate two different measures of entanglement. namely logarithmic negativity and concurrence The phenomenon of sudden death entanglement (ESD) in a bipartite system subjected to dissipative environment is examined We show that the sudden death time of the entangled states depends on the initial preparation of the entangled state and the temperature of the reservoir. (C) 2010 Elsevier B V All rights reserved

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