Single-Mode Cavity-QED of a Raman Interaction

Details Single-Mode Cavity-QED of a Raman Interaction Single-Mode Cavity-QED of a Raman Interaction

1996-05-22

arxiv.org/abs/atom-ph/9605007v1

Physics

Atomic Physics

16 pages, Latex, Two Figures available on request

Scientific paper

We consider a single Rydberg atom having two degenerate levels interacting with the radiation field in a single-mode ideal cavity. The transition between the levels is carried out by a $\Lambda$-type degenerate two-photon process via a third level far away from single-photon resonance. At the start of interaction, the atom is considered to be in a coherent superposition of its two levels and the field in a coherent state. We study the dynamics of the atomic as well as the field states. The squeezing in the quadratures of atomic states can reach up to $100\%$. The cavity field evolves to a statistical mixture of two coherent fields with the phase difference between them decided by the interaction time. Analysis of entropies of the atom and the field shows that the two systems are dis-entangled periodically in certain cases.

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