Four-level atom via intensity dependent atom-field coupling

Abstract EN

We study the interaction of a four level-atom with a single mode in a cavity, involving intensity dependent coupling with additional a kirr-like medium.

The wave function is obtained when the atom is initially in superposition of its upper and ground states and the field in coherent state.

We evaluate the Mandel Q parameter, phase probability distribution and the field entropy.

The influence of the Kerr medium, the detuning and the presence of the intensity dependent coupling on their evolution was discussed.