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 1094-1622Full text not available in this repository. (Request a copy from the Strathclyde author)
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.
|Keywords:||time evolution, mechanical systems, usual notion, amplifier, noise, Optics. Light, Atomic and Molecular Physics, and Optics|
|Subjects:||Science > Physics > Optics. Light|
|Department:||Faculty of Science > Physics|
|Depositing user:||Pure Administrator|
|Date Deposited:||17 Jun 2011 11:18|
|Last modified:||18 Nov 2016 01:05|