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Maximum Confidence Quantum Measurements

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arxiv quant-ph/0604026 v1 pith:J2IWU2N7 submitted 2006-04-05 quant-ph

Maximum Confidence Quantum Measurements

Sarah Croke , Erika Andersson , Stephen M. Barnett , Claire R. Gilson , John Jeffers This is my paper
classification quant-ph
keywords confidencelinearlymaximummeasurementpossibleresultstatestates
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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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  1. Quantum randomness beyond projective measurements

    quant-ph 2026-05 unverdicted novelty 7.0

    Unbiased extremal rank-one measurements generate characterized randomness in dimension 2, with tetrahedral SIC having the least, and SICs achieve maximal 2 log d randomness device-dependently in dimensions where they exist.