Retrodiction for quantum optical communications

Barnett, S M and Pegg, D T and Jeffers, J and Jedrkiewicz, O and Loudon, R (2000) Retrodiction for quantum optical communications. Physical Review A, 6202 (2). -. ISSN 1050-2947 (https://doi.org/10.1103/PhysRevA.62.022313)

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Abstract

Given the result of a measurement on the output of a quantum optical communication channel, we show how to calculate a retrodictive state at the input. This state can be used by the receiver to determine the probability that any one of a given set of states was selected by the transmitter. We establish the remarkably simple result that retrodicting the prepared input signal for an attenuating (amplifying) channel corresponds to predicting the measured output signal for an amplifying (attenuating) channel.

ORCID iDs

Barnett, S M, Pegg, D T, Jeffers, J ORCID logoORCID: https://orcid.org/0000-0002-8573-1675, Jedrkiewicz, O and Loudon, R;
  • Item type:Article
    ID code:31006
    Dates:
    Date
    Event
    August 2000
    Published
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:17 Jun 2011 11:18
    Last modified:11 Nov 2024 09:44
    URI:https://strathprints.strath.ac.uk/id/eprint/31006
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