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Continious Variable (CV) Entanglement Formulation for Bipartite Quantum System

Solomon Getahun

We analyze density operator, Q function, photon statistics, quadrature squeezing, and Cv entanglement that holds true for a pair of superposed two-mode photon system. We also present a slightly modified definition of entanglement and squeezing for a pair of super- posed two-mode system and new definition for degree of entanglement. In order to carry out our analysis, we consider a quantum system with Gaussian variables with zero mean. It is found that maximum degree of entanglement as well as squeezing occurs at steady-state and threshold.