The revival-collapse phenomenon in the quadrature squeezing and in the Wigner function of the single- mode field interacting with the two two-level atoms

Abstract

In this paper we consider a quantized single-mode field interacting with two two-level atoms. For the radiation field of this system we investigate the occurrence of the revival-collapse phenomenon in the evolution of the Wigner (W) function at the phase-space origin and of the quadrature squeezing. We show under certain conditions that the higher-order quadrature squeezing and the W function can provide complete information on the total atomic inversion. Moreover, we develop the notion of the geometric atomic inversion and show that it can be connected by the W function and the quadrature squeezing.