Acta Photonica Sinica, Volume. 40, Issue 6, 937(2011)
Quantum Properties of the Binomial State Field Interacting With a V Type Three-level Atom Without Rotating Wave Approximation
By the method of coherent-state orthogonalization expansion, the energy spectrum of the V type three-level atom was calculated exactly in the non-rotating wave approximation, and a level-crossing problem was also considered by means of fidelity. The influences of the initial states of the V type three-level atom and the parameter of the binomial optical fields on the second-order coherence degree were studied. The numerical results indicate that: when the atom is initially in the ground state, the duration of the bunching effect increases at the beginning and then decreases with the increasing of η; when the atom is initially in the coherent state, the duration of the bunching effect decreases with the increasing of η. Finally, both cases of the light fields displayed anti-bunching effect completely when the value of η was large enough. When other parameters didnot change,the average of G2(t) increases with the enlargement of coupling strengh.
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WANG Xu-Wen, REN Xue-Zao, XIA Jian-Ping, CONG Hong-Lu. Quantum Properties of the Binomial State Field Interacting With a V Type Three-level Atom Without Rotating Wave Approximation[J]. Acta Photonica Sinica, 2011, 40(6): 937
Received: Dec. 27, 2010
Accepted: --
Published Online: Jun. 24, 2011
The Author Email: Xu-Wen WANG (wxuwen0116@163.com)