Beating the Standard Quantum Limit for Nonorthogonal Multi-State Discrimination

F. E. Becerra, Jingyun Fan, G. Baumgartner, J. Goldhar, Jon T. Kosloski, Alan L. Migdall

Published Jan 1, 2013• 1 citation

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.

DOI: 10.1364/cleo_qels.2013.qf2b.4

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