Entanglement Properties of Entangled Coherent State in Symmetrical Phase Space Interacting with Entangled Atoms

摘要

In this paper, we investigated the entanglement properties of entangled coherentstate in symmetrical phase space interacting with entangled atoms. Using the numerical calculations we discussed the entanglement between entangled atoms and entangled coherent field by the means of the von Neumann entropy, and the entanglement of the two atoms by the means of the negative eigenvalues of the partial transposition of reduced density matrix. The result shows that the strength of the light field, the relative phase factor have visibly influence on the degree of the entanglement. The impact on the entanglement by the coherent argument is tiny obvious.