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1. Quantum displacement receiver for M-ary phase-shift-keyed coherent states.

Author

Shuro Izumi, Masahiro Takeoka, Mikio Fujiwara, Pozza, Nicola Dalla, Assalini, Antonio, Kazuhiro Ema, and Masahide Sasaki

Subjects
PHASE shift keying, PHASE modulation, QUANTUM theory, FEEDFORWARD amplifiers, ERROR probability
Abstract

We propose quantum receivers for 3- and 4-ary phase-shift-keyed (PSK) coherent state signals to overcome the standard quantum limit (SQL). Our receiver, consisting of a displacement operation and on-off detectors with or without feedforward, provides an error probability performance beyond the SQL. We show feedforward operations can tolerate the requirement for the detector specifications. [ABSTRACT FROM AUTHOR]

Published
2014
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