title: Master equation for retrodiction of quantum communication signals.
abstract: We derive the master equation that governs the evolution of the measured state backwards in time in an open system. This allows us to determine probabilities for a given set of preparation events from the results of subsequent measurements, which has particular relevance to quantum communication.
authors: Department of Physics and Applied Physics, University of Strathclyde, Glasgow, United Kingdom.
authors: S M
authors: SM
authors: Barnett
authors: D T
authors: DT
authors: Pegg
authors: J
authors: J
authors: Jeffers
authors: O
authors: O
authors: Jedrkiewicz