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The European Physical Journal D

, Volume 41, Issue 3, pp 589–598 | Cite as

Maximum confidence measurements and their optical implementation

  • S. CrokeEmail author
  • P. J. Mosley
  • S. M. Barnett
  • I. A. Walmsley
Quantum Optics and Quantum Information

Abstract.

Perfect discrimination between non-orthogonal states is forbidden by the laws of quantum mechanics. Several strategies to discriminate optimally between states of an arbitrary set exist, and many of these have been implemented in experiments using optical polarisation. In this paper we discuss maximum confidence measurements and their recent optical implementation.

PACS.

42.50.Xa Optical tests of quantum theory 03.67.Hk Quantum information 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Authors and Affiliations

  • S. Croke
    • 1
    • 2
    Email author
  • P. J. Mosley
    • 3
  • S. M. Barnett
    • 1
  • I. A. Walmsley
    • 3
  1. 1.Department of PhysicsUniversity of StrathclydeGlasgowUK
  2. 2.Department of MathematicsUniversity of GlasgowGlasgowUK
  3. 3.Clarendon Laboratory, Oxford UniversityOxfordUK

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