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The interactions of a two-level atom with a coherent field of time-varying frequency: the two-photon transition

Li Zheng-Hong Yu Ming-Zhang Yang Ya-Ping

The interactions of a two-level atom with a coherent field of time-varying frequency: the two-photon transition

Li Zheng-Hong, Yu Ming-Zhang, Yang Ya-Ping
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  • Received Date:  13 May 2007
  • Accepted Date:  19 June 2007
  • Published Online:  20 March 2008

The interactions of a two-level atom with a coherent field of time-varying frequency: the two-photon transition

  • 1. 同济大学物理系,上海 200092

Abstract: The two-photon transition for a two-level atom interacting with a single-mold electromagnetic field has been investigated. The initial coherent states with time-varying frequency are considered. The effects of the frequency modulation in sinusoidal form on the atomic population inversion and the squeezing properties of the atom and field are studied. The frequency change can lead the collapse-revival period of population inversion to increase, the maximum value of the revival to decrease, and the squeezing effects of the field and atom are weakened.

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