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Beating the Standard Quantum Limit for Nonorthogonal Multi-State Discrimination

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Author
F. Becerra
J. Fan
G. Baumgartner
J. Goldhar
J. Kosloski
A. Migdall
Abstract

We demonstrate a quantum receiver that discriminates four nonorthogonal states with error probabilities below the standard quantum limit (SQL) for a wide range of input powers and as much as 6 dB below the SQL.

Year of Publication
2013
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Group
JQI