摘要
We have studied the dynamics and transfer of the entanglement of the two identical atoms simultaneously interacting with vacuum field by employing the dressed-state representation. The two atoms are driven by classical fields. The influence of the initial entanglement degree of two atoms, the coupling strength between the atom and the classical field and the detuning between the atomic transition frequency and the frequency of classical field on the entanglement and atomic linear entropy is discussed. The initial entanglement of the two atoms can be transferred into the entanglement between the atom and cavity field when the dissipation is neglected. The maximally entangled state between the atoms and cavity field can be obtained under some certain conditions. The time of disentanglement of two atoms can be controlled and manipulated by adjusting the detuning and classical driving fields. Moreover, the larger the cavity decay rate is, the more quickly the entanglement of the two atoms decays.
We have studied the dynamics and transfer of the entanglement of the two identical atoms simultaneously interacting with vacuum field by employing the dressed-state representation. The two atoms are driven by classical fields. The influence of the initial entanglement degree of two atoms, the coupling strength between the atom and the classical field and the detuning between the atomic transition frequency and the frequency of classical field on the entanglement and atomic linear entropy is discussed. The initial entanglement of the two atoms can be transferred into the entanglement between the atom and cavity field when the dissipation is neglected. The maximally entangled state between the atoms and cavity field can be obtained under some certain conditions. The time of disentanglement of two atoms can be controlled and manipulated by adjusting the detuning and classical driving fields. Moreover, the larger the cavity decay rate is, the more quickly the entanglement of the two atoms decays.
基金
Supported by National Natural Science Foundation of China under Grant Nos.11247213,61368002,11304010,11264030,61168001
China Postdoctoral Science Foundation under Grant No.2013M531558
Jiangxi Postdoctoral Research Project under Grant No.2013KY33
the Natural Science Foundation of Jiangxi Province under Grant No.20142BAB217001
the Foundation for Young Scientists of Jiangxi Province(Jinggang Star)under Grant No.20122BCB23002
the Research Foundation of the Education Department of Jiangxi Province under Grant Nos.GJJ13051,GJJ13057
the Graduate Innovation Special Fund of Nanchang University under Grant No.cx2015137
