https://doi.org/10.1140/epjd/e2006-00265-1
Maximum confidence measurements and their optical implementation
1
Department of Physics, University of Strathclyde, Glasgow, G4 0NG, UK
2
Department of Mathematics, University of Glasgow, Glasgow, G12 8QW, UK
3
Clarendon Laboratory, Oxford University, Parks Road, Oxford, OX1 3PU, UK
Corresponding author: a sarah@phys.strath.ac.uk
Received:
19
June
2006
Revised:
5
October
2006
Published online:
8
December
2006
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
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2006