title: Operational phase-space probability distribution in quantum communication theory
abstract: Operational phase-space probability distributions are useful tools for describing quantum mechanical systems, including quantum communication and quantum information processing systems. It is shown that quantum communication channels with Gaussian noise and quantum teleportation of continuous variables are described by operational phase-space probability distributions. The relation of operational phase-space probability distribution to the extended phase-space formalism proposed by Chountasis and Vourdas (1998) is discussed
keyphrases: operational phase-space probability distribution quantum communication theory quantum mechanical systems quantum information processing systems Gaussian noise quantum teleportation continuous variables extended phase-space formalism