Measurement does not always aid state discrimination

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Hunter, Kieran (2003) Measurement does not always aid state discrimination. Physical Review A, 68 (1). 012306/1-012306/3. ISSN 1050-2947 (https://doi.org/10.1103/PhysRevA.68.012306)

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Abstract

We have investigated the problem of discriminating between nonorthogonal quantum states with the least probability of error. We have determined that the best strategy for some sets of states is to make no measurement at all and simply to always assign the most commonly occurring state. Conditions that describe such sets of states have been derived.

  • Item type:Article
    ID code:6204
    Dates:
    Date
    Event
    9 July 2003
    Published
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Miss Darcy Spiller
    Date deposited:02 Jun 2008
    Last modified:11 Nov 2024 08:41
    URI:https://strathprints.strath.ac.uk/id/eprint/6204
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