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 (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.

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• Item metadata

  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:	08 Apr 2024 15:51
  URI:	https://strathprints.strath.ac.uk/id/eprint/6204