Manipulation and measurement of quantum signals via non-Gaussian operation

Akira Kitagaw, Masahiro Takeoka, Masahide Sasaki, Anthony Chefles, Norbert Lütkenhaus

Research output: Contribution to journalArticlepeer-review

Abstract

On the current communication scheme, Gaussian coherent state signals play an important role. To make use of a potential of coherent state signals going beyond the shot noise limit, not only Gaussian operations, but also non-Gaussian operations, described as the third or higher order interactions with respect to the electric field amplitude, must essentially be applied. In this manuscript, we discuss our recent results on the enhancement of entanglement and quantum signal descrimination via the measurement-induced non-Gaussian operation with the photon detector and linear optics.

Original languageEnglish
Pages (from-to)87-97
Number of pages11
JournalJournal of the National Institute of Information and Communications Technology
Volume53
Issue number3
Publication statusPublished - 2006 Sep
Externally publishedYes

Keywords

  • Entanglement enhancement
  • Measurement-induced non-Gaussian operation
  • Photon detection
  • Quantum state discrimination

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering

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