Eur. Phys. J. D 3, 289-294 (1998)
https://doi.org/10.1007/s100530050176

Phase properties of a Jaynes-Cummings model with Stark shift and Kerr medium

¹ Faculty of Science Al-Azhar University, Nasr City, Cairo, Egypt
² Faculty of Science El-Minia University, El-Minia, Egypt
³ Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany

Corresponding author: ^a mha@mpq.mpg.de

Received: 27 March 1998
Revised: 8 June 1998
Accepted: 9 June 1998
Published online: 15 September 1998

Abstract

Phase properties of the field interacting with a two-level atom in a lossless cavity Jaynes-Cummings model, taking into account the level shifts produced by Stark effect with an additional Kerr medium for one-mode are studied using the phase formalism of Pegg and Barnett. It is shown in particular that phase properties of the field reflect the collapse and revival phenomena. The results for the time evolution of the phase probability distribution and the phase fluctuations are obtained. The effect of Stark shift on the phase properties in both the absence and presence of a Kerr medium is analyzed. Phase localization is found for certain choice of the parameters.