Maximum confidence quantum measurements

Sarah Croke; Anna Erika Elisabeth Andersson; Stephen M Barnett; Claire R Gilson; John Jeffers

doi:10.1103/PhysRevLett.96.070401

Maximum confidence quantum measurements

Sarah Croke, Anna Erika Elisabeth Andersson, Stephen M Barnett, Claire R Gilson, John Jeffers

Research output: Contribution to journal › Article › peer-review

114 Citations (Scopus)

Abstract

We consider the problem of discriminating between states of a specified set with maximum confidence. For a set of linearly independent states unambiguous discrimination is possible if we allow for the possibility of an inconclusive result. For linearly dependent sets an analogous measurement is one which allows us to be as confident as possible that when a given state is identified on the basis of the measurement result, it is indeed the correct state.

Original language	English
Article number	070401
Number of pages	4
Journal	Physical Review Letters
Volume	96
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.96.070401
Publication status	Published - 24 Feb 2006

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10.1103/PhysRevLett.96.070401

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abstract = "We consider the problem of discriminating between states of a specified set with maximum confidence. For a set of linearly independent states unambiguous discrimination is possible if we allow for the possibility of an inconclusive result. For linearly dependent sets an analogous measurement is one which allows us to be as confident as possible that when a given state is identified on the basis of the measurement result, it is indeed the correct state.",

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AU - Gilson, Claire R

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JO - Physical Review Letters

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Maximum confidence quantum measurements

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