Unambiguous discrimination between linearly independent quantum states

Chefles, A. (1998) Unambiguous discrimination between linearly independent quantum states. Physics Letters A, 239 (6). pp. 339-347. ISSN 0375-9601 (http://dx.doi/org/10.1016/S0375-9601(98)00064-4)

Abstract

The theory of generalised measurements is used to examine the problem of discriminating unambiguously between non-orthogonal pure quantum states. Measurements of this type never give erroneous results, although, in general, there will be a non-zero probability of a result being inconclusive. It is shown that only linearly independent states can be unambiguously discriminated. In addition to examining the general properties of such measurements, we discuss their application to entanglement concentration.

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• Item metadata

  Item type:	Article
  ID code:	6191
  Dates:	Date Event 16 March 1998 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Miss Darcy Spiller
  Date deposited:	02 Jun 2008
  Last modified:	28 Nov 2024 22:45
  Related URLs:	http://arxiv.org/PS_cache/quant-ph/pdf/9...
  URI:	https://strathprints.strath.ac.uk/id/eprint/6191