Non-Gaussian control of continuous variables with photon counting and filtering

M. Sasaki, K. Wakui, H. Takahashi, M. Takeoka, S. Suzuki

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


We study various non-Gaussian states generated by photon subtrastion from a squeezed light source. The source is a cw beam generated by optical parametric oscillator. The photon subtraction is made by tapping a small fraction of the squeezed light source and by guiding it into two Si-APDs, which enable the subtraction of one to two photons. Trigger photon clicks specify a certain temporally localized mode in the remaining squeezed beam. By filtering the remaining squeezed beam through an appropriate mode function, one can generate a variety of non-Gaussian states. This includes single and two photon states, the NOON state (N = 2), Schrödinger kitten states of both odd and even parities, and their arbitrarily desired superposition.

Original languageEnglish
Title of host publicationQuantum Communications Realized
Publication statusPublished - 2007
Externally publishedYes
EventQuantum Communications Realized - Boston, MA, United States
Duration: 2007 Sept 102007 Sept 12

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceQuantum Communications Realized
Country/TerritoryUnited States
CityBoston, MA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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