Quantum entanglement of the binomial field interacting with the moving atoms in the multiphoton Tavis-Cummings model

Abstract

Abstract:

The field entropy evolution of two moving atoms interacting with the binomial field in the multiphoton tavis-cumming model is studied. The influences of the atomic motion and the parameters of the binomial light field on the field entropy are discussed by means of the full quantum theory. The results indicate that the parameters of the binomial optical field are not influence the periodicity of the evolution of the field entropy, but it has effect on the value of the filed entropy. With the increase of the photon number of atomic transition, the periodicity of the evolution of the field entropy and the disentanglement were disappearing gradually. The speed of the moving atoms affects the periodicity of the evolution of the field entropy and the value of the entropy. But the increase the photon number of atomic transition will weaken the influence of the atomic motion on the field entropy. When the field is in the middle states, the speed of the atoms is lower and the photon number of atomic transition is larger, the binomial field and the two atoms will be entangled state for a long time.

Key words: quantum optics, quantum entanglement, moving atoms, binomial state field

BAO Li Sachuerfu WU Shumei . Quantum entanglement of the binomial field interacting with the moving atoms in the multiphoton Tavis-Cummings model[J]. J4, 2010, 27(5): 580-585.

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