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Entanglement Dynamics of Three Qubits in the Non-Markovian Environments |
| SHAN Chuan-Jia, LIU Ji-Bing, CHEN Tao, LIU Tang-Kun, HUANG Yan-Xia, LI Hong |
College of Physics and Electronic Science, Hubei Normal University, Huangshi 435002
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| Cite this article: |
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SHAN Chuan-Jia, LIU Ji-Bing, CHEN Tao et al 2010 Chin. Phys. Lett. 27 100301 |
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Abstract We consider the entanglement dynamics of three two-level atoms interacting with independent structured non-Markovian reservoirs. The atoms are initially prepared in a mixed multipartite Greenberger-Horne-Zeilinger (GHZ)-type state. Based on the purity and non-Markovian reservoirs, we show that the reservoirs' entanglement can exhibit not only multipartite entanglement sudden birth but also entanglement sudden death, and the revival of atom entanglement is not always accompanied by the disentanglement of reservoirs. Meanwhile, we derive the quantitative criteria for multipartite revival and death phenomena and find multipartite entanglement sudden death and entanglement sudden birth simultaneous apparition time is independent of the initial three-qubit state.
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| Keywords:
03.65.Yz
03.67.Mn
42.50.Pq
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Received: 19 April 2010
Published: 26 September 2010
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| PACS: |
03.65.Yz
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(Decoherence; open systems; quantum statistical methods)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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42.50.Pq
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(Cavity quantum electrodynamics; micromasers)
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