Results in optimal discrimination

Hunter, Kieran (2004) Results in optimal discrimination. American Institute of Physics Conference Proceedings, 734 (83). pp. 83-86. ISSN 1551-7616 (https://doi.org/10.1063/1.1834388)

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Abstract

We study the problem of discriminating between non-orthogonal quantum states with least probability of error. We demonstrate that this problem can be simplified if we solve for the error itself rather than solving directly for the optimal measurement. This method enables us to derive solutions directly and thus make definite statements about the uniqueness of an optimal strategy. This approach immediately leads us to a state-discrimination analogue of Davies Theorem [1]. In the course of this, a complete solution for distinguishing equally likely pure qubit states is presented.

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• Item metadata

  Item type:	Article
  ID code:	6206
  Dates:	Date Event 15 November 2004 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Miss Darcy Spiller
  Date deposited:	02 Jun 2008
  Last modified:	11 Nov 2024 08:43
  URI:	https://strathprints.strath.ac.uk/id/eprint/6206