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Physical Review A

Phase properties and atomic coherent trapping in the system of a three-level atom interacting with a bimodal field

Jin-sheng Peng, Gao‐xiang Li, Peng Zhou

Published Aug 1, 1992• 22 citations
Publisher

Abstract

We have studied the time evolution of the phase operators of the radiation field in the system containing a ssV-type three-level atom interacting with the bimodal field by means of the phase formalism given by Pegg and Barnett [J. Mod. Opt. 36, 7 (1989); Phys. Rev. A 39, 1665 (1989)]. That the atomic coherent trapping will happen in an appropriate initial state of the system has also been verified.

DOI
10.1103/physreva.46.1516

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We have studied the time evolution of the phase operators of the radiation field in the system containing a ssV-type three-level atom interacting with the bimodal field by means of the phase formalism given by Pegg and Barnett [J. Mod. Opt. 36, 7 (1989); Phys. Rev. A 39, 1665 (1989)]. That the atomic coherent trapping will happen in an appropriate initial state of the system has also been verified.
We analyze the phase properties of a strong cavity field interacting with an ensemble of initially excited N two-level atoms. Using the Pegg-Barnett phase formalism [Phys. Rev. A 39, 1665 (1989)], we calculate the phase probability distribution as well as the phase variance. The phase probability density exhibits a (N+1)-peak structure at the initial stages of the evolution. The phase variance is used to illustrate the progressive randomization of the phase on the long-time evolution. The difference in the phase dynamics for the N even and the N odd case is pointed out.