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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
EditorsPhilip Walther, Hannes-Jorg Schmiedmayer
PublisherAmerican Institute of Physics Inc.
Pages62-64
Number of pages3
ISBN (Electronic)9780735412729
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event11th International Conference on Quantum Communication, Measurement and Computation, QCMC 2012 - Vienna, Austria
Duration: 2012 Jul 302012 Aug 3

Publication series

NameAIP Conference Proceedings
Volume1633
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference11th International Conference on Quantum Communication, Measurement and Computation, QCMC 2012
Country/TerritoryAustria
CityVienna
Period12/7/3012/8/3

Keywords

  • Displacement receiver
  • Error probability
  • Feedforward

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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