Four-component superposition of squeezed displaced Fock states

A detailed discussion of a type of four-component superposition of squeezed displaced Fock states (SDFSs) is presented. These states, often called Sch rodinger cat states for the coherent states, are of great interest at prese nt. The s-parameterized characteristic function (CF) and the quasi-probabil ity distribution functions (QDFs) of these states are calculated. The non-c lassical properties of these states such as photon number distribution and squeezing are discussed. The quadrature distributions are illustrated. The Pegg-Barnet phase distribution is discussed. A generation scheme is propose d for these states. (C) 2001 Elsevier Science Ltd. All rights reserved.