Dark States and Interferences in Cascade Transitions of Ultra-Cold Atoms in a Cavity

Details Dark States and Interferences in Cascade Transitions of Ultra-Cold Atoms in a Cavity Dark States and Interferences in Cascade Transitions of Ultra-Cold Atoms in a Cavity

2002-04-04

arxiv.org/abs/quant-ph/0204023v1

Phys. Rev. A 66, 043812 (2002).

Physics

Quantum Physics

15 pages including 7 figures in Revtex, submitted to PRA

Scientific paper

10.1103/PhysRevA.66.043812

We examine the competition among one- and two-photon processes in an ultra-cold, three-level atom undergoing cascade transitions as a result of its interaction with a bimodal cavity. We show parameter domains where two-photon transitions are dominant and also study the effect of two-photon emission on the mazer action in the cavity. The two-photon emission leads to the loss of detailed balance and therefore we obtain the photon statistics of the cavity field by the numerical integration of the master equation. The photon distribution in each cavity mode exhibits sub- and super- Poissonian behaviors depending on the strength of atom-field coupling. The photon distribution becomes identical to a Poisson distribution when the atom-field coupling strengths of the modes are equal.

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