The Research of Qubit-Field System Quantum Entanglement under J-C Model

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In this article we plan to get a equation about the concurrence. We select the J-C model, then introduce the double-cavity and double-atom system in this model, and consider the two-atom entanglement. By using the Taylor expansion to calculate the quantum correlations concurrence in this system. Finally we deduce this equation which can predict the sudden death and rebirth of the spin quantum entanglement.

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464-468

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October 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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