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Relations of classical-quantum correspondencein Dicke model

Wang Yu-Bo Song Li-Jun Yan Dong Gai Yong-Jie

Relations of classical-quantum correspondencein Dicke model

Wang Yu-Bo, Song Li-Jun, Yan Dong, Gai Yong-Jie
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  • Received Date:  22 March 2010
  • Accepted Date:  03 May 2010
  • Published Online:  15 February 2011

Relations of classical-quantum correspondencein Dicke model

  • 1. (1)School of Science, Changchun University of Science and Technology, Changchun 130022, China; (2)School of Science, Changchun University, Changchun 130022, China

Abstract: Dicke model displays quantum chaotic dynamic properties in the non-rotating wave approximation. On the basis of properties of the classical phase space of Dicke model, we employ the one-to-many notion, namely, evolution from one point on the classical phase space to two initial coherent states. Then we obtain a good quantum phase space, which corresponds to the classical one, by using the method of averaging the statistical entangled values of two initial states in the evolution. The numerical computation shows that classical chaos can promote the origination of bipartite entanglement, and simultaneously, the average entanglement can be regarded as the signature of quantum chaos. A good classica-quantum correspondence can be obtained by using the average entanglement.

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