Eur. Phys. J. Plus (2014) 129: 144
https://doi.org/10.1140/epjp/i2014-14144-9

Regular Article

Dynamics of N-configuration four-level atom interacting with one-mode cavity field

¹ Mathematics Department, Faculty of Science, Minia University, Minia, Egypt
² Mathematics Department, Faculty of Science, Assuit University, Assuit, Egypt

^* e-mail: nady_aa@yahoo.com

Received: 17 November 2013
Revised: 17 April 2014
Accepted: 30 May 2014
Published online: 8 July 2014

Abstract

In this paper, a model is presented to investigate the interaction between a four-level atom and a single mode of the radiation field. The relative phase, the detuning and the Kerr-like medium are taken into consideration. The exact solution is given when the atom is initially prepared in superposition coherent state. The influences of the relative phase, and the Kerr-like medium on the collapses-revivals, the field entropy and the amplitude-squared squeezing phenomena for the considered system are examined. It is found that these parameters have important effects on the properties of these phenomena.