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Optimum Unambiguous Discrimination Between Linearly Independent Symmetric States

Anthony Chefles·Stephen M. Barnett
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Abstract

The quantum formalism permits one to discriminate sometimes between any set of linearly-independent pure states with certainty. We obtain the maximum probability with which a set of equally-likely, symmetric, linearly-independent states can be discriminated. The form of this bound is examined for symmetric coherent states of a harmonic oscillator or field mode.

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Anthony Chefles, Stephen M. Barnett. 1998-07-08. Optimum Unambiguous Discrimination Between Linearly Independent Symmetric States. https://doi.org/10.1016/s0375-9601(98)00827-5

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