Poisson Quantum Information

By taking a Poisson limit for sequence of rare quantum objects, I derive simple formulas the Uhlmann fidelity, Chernoff quantity, relative entropy, and Helstrom information. also present analogous in classical information theory model. An operator called intensity emerges as central quantity formalism to describe states. It behaves like density but is unnormalized. The terms operators not only resemble general operators, coincide with some existing definitions divergences between unnormalized positive-semidefinite matrices. Furthermore, show that effects certain channels on states can be described by maps operators.