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Measurement does not always aid state discrimination

Hunter, Kieran (2003) Measurement does not always aid state discrimination. Physical Review A, 68 (1). 012306/1-012306/3. ISSN 1050-2947

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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
    Keywords: quantum states, nonorthogonal quantum states, probability, quantum, physics, Optics. Light, Atomic and Molecular Physics, and Optics
    Subjects: Science > Physics > Optics. Light
    Department: Unknown Department
    Related URLs:
    Depositing user: Miss Darcy Spiller
    Date Deposited: 02 Jun 2008
    Last modified: 05 Sep 2014 13:25
    URI: http://strathprints.strath.ac.uk/id/eprint/6204

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