Phys. Rev. A 78, 042315 (2008) [10 pages]Optical realization of the unambiguous discriminator for unknown quantum statesReceived 30 March 2008; revised 2 July 2008; published 16 October 2008 With a single-photon representation of the quantum states and a multirail optical network for performing the unitary transformation, we give a scheme for an optical implementation of the universal programmable quantum state discriminator that unambiguously discriminates between two unknown states with optimal probability of success. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.78.042315
DOI:
10.1103/PhysRevA.78.042315
PACS:
03.67.Lx
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