Journal of Atomic and Molecular Physics

Entropy properties in the system of atoms in Bell states interacting with the two-mode entangled coherent field

Yong Li

Published Jan 1, 2008• 0 citations

Abstract

The entanglement time evolution of atoms in Bell states interacting with the two-mode entangled coherent field is investigated by means of Negativity.The effects of the atoms initial state,mean photon numbers of field,the degree of the entanglement for the entangled coherent fields,and the coupling strength of interaction between atoms on the Negativity are discussed.The results shows that the two-atom entanglement state will forever stay in the maximum entangled state when the initial state is |β11〉,while the Bell state |β00〉 atoms appear disentanglement most of the time.For the state |β10〉 mean photon numbers of field can be a great help,and in the state |β01〉 the coupling strength of interaction between atoms plays a major role in the two-atom entanglement.

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