Aspects of the Two-Level Atom in Squeezed Displaced Fock States
A.‐S. F. Obada, G M Abdal-Kader, Mahmoud Abdel‐Aty · Physica Scripta · 2001
This paper presents some results on aspects of the two-level atom interacting with a single-mode with the privileged field mode being in the squeezed displaced Fock state (SDFS). The exact results are employed to perform a careful investigation of the temporal evolution of the atomic inversion, entropy and phase distribution. It is shown that the interference between component states leads to non-classical oscillations in the photon number distribution. At the revival time the field is again in the pure state. We have briefly discussed the collapses and revivals of the atomic inversion by studing the evolution of the Q function of the cavity field. We also established the connection between the field entropy and the collapses and revivals of the atomic inversion. We find that the phase probability distribution of the field reflects the collapses and revivals of the level occupation probabilities in most situations. The interaction brings about the symmetrical splitting of the phase probability distribution. The general conclusions reached are illustrated by numerical results.