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Sudden Transition between Quantum Correlation and Classical Correlation: the Effect of Interaction between Subsystems |
| YAN Jun-Yan**, WANG Lin-Cheng, YI Xue-Xi
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School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024
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| Cite this article: |
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YAN Jun-Yan, WANG Lin-Cheng, YI Xue-Xi 2011 Chin. Phys. Lett. 28 060302 |
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Abstract We study the quantum discord dynamics of a bipartite composite system in the presence of a dissipative environment and investigate the effect of the interaction between the two subsystems. The results show that the interaction can influence the sudden transition between the quantum correlation and the classical correlation and for the maximally mixed marginals initial states, the sudden transition regime will always exist. The entanglements are also discussed in comparison to the quantum discord in describing the quantum correlations.
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| Keywords:
03.65.Ta
03.65.Yz
03.67.Mn
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Received: 14 January 2011
Published: 29 May 2011
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| PACS: |
03.65.Ta
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(Foundations of quantum mechanics; measurement theory)
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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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