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Conferences > ICUSD > 2012 > JT2A > JT2A.4

Decomposition of rank-two mixed states and quantum state discrimination

Luis Roa, M. Alid-Vaccarezza, and A. Maldonado-Trapp

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Abstract

We study how the mathematical property of pure-state decomposition of a mixed state is related to the quantum state discrimination. All the possible linearly independent pure-state decomposition of a rank-two mixed state are characterized by means of the complex overlap between the two involved states, finding that the balanced pure-state decomposition has the smallest probability of being discriminated conclusively and the highest one with minimum-error.

© 2012 Optical Society of America

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