Master equation for retrodiction of quantum communication signals

Stephen M. Barnett, David T. Pegg, John Jeffers, Ottavia Jedrkiewicz

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46 Citations (Scopus)
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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.
Original languageEnglish
Pages (from-to)2455-2458
Number of pages3
JournalPhysical Review Letters
Volume86
Issue number11
DOIs
Publication statusPublished - Mar 2001

Keywords

  • master equation
  • quantum physics
  • quantum communication
  • measurement
  • optics
  • photonics

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