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ac Stark effect for a two-level atom in a squeezed vacuum via a two-photon process |
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| Authors: | Xun-Li Feng Zhao-Yang Chen Zhi-Zhan Xu |
| Institution: | (1) CCAST (World Laboratory), P.O.Box 8730, Beijing 100080, and Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, P.R. China, CN |
| Abstract: | The nondegenerate two-photon interaction of a two-level atom with a broadband multimode squeezed vacuum is investigated. We find that in the two-photon process the squeezed vacuum has a driving effect on the atom which can lead to an ac Stark effect when the average photon number of the squeezed vacuum is larger than a critical value. Received: 2 February 1999 / Received in final form: 20 April 1999 |
| Keywords: | PACS 42 50 -p Quantum optics - 32 80 -t Photon interactions with atoms |
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