Atoms interacting with a quantized radiation mode

Fumio Hiroshima

R. A. Ismailov, Alexander Ya. Kazakov

If a two-level atom is in the two-photon resonance with a quantized mode and simultaneously inter-acts with a quasi-resonance classical field, then a photon exchange is observed in this system between the quantized and classical modes. It is demonstrated that such a physical system can serve as a source of squeezed radiation in the quantized mode. The squeezing can be arbitrarily close to unity, while the radiation amplitude can be relatively large. A situation is discussed when N atoms are in the two-photon resonance with a quantized mode and simultaneously interact with a classical field. The phenomenon of exponential superradiation is described when the number of photons in the quantized mode exponentially depends on the number N of atoms.

Fumio Hiroshima

M. S. Iqbal, S. Mahmood, M. S. K. Razmi +1 more

Interactions of two two-level atoms with a single-mode quantized radiation field are studied, and exact expressions for the atom-field probability amplitudes in the rotating-wave approximation are presented. These solutions are employed in the study of the quantum collapse and revivals of the atomic coherence.

Alexander Ya. Kazakov

If an atom interacts with a classical field and quantized mode simultaneously, exchange by photons between the different components of the field is possible. Such systems can be exploited in order to generate radiation in the quantized mode and can be considered as a micromaser with optical pumping. The process of generation of the quantized field and the quantum-statistical characteristics of this radiation are under investigation.

Pierre Meystre, Murray Sargent