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Proceedings Paper

Non-Gaussian control of continuous variables with photon counting and filtering
Author(s): M. Sasaki; K. Wakui; H. Takahashi; M. Takeoka; S. Suzuki
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Paper Abstract

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.

Paper Details

Date Published: 10 September 2007
PDF: 8 pages
Proc. SPIE 6780, Quantum Communications Realized, 678006 (10 September 2007); doi: 10.1117/12.733491
Show Author Affiliations
M. Sasaki, National Institute of Information and Communications Technology (Japan)
K. Wakui, National Institute of Information and Communications Technology (Japan)
The Univ. of Tokyo (Japan)
H. Takahashi, National Institute of Information and Communications Technology (Japan)
The Univ. of Tokyo (Japan)
M. Takeoka, National Institute of Information and Communications Technology (Japan)
S. Suzuki, National Institute of Information and Communications Technology (Japan)


Published in SPIE Proceedings Vol. 6780:
Quantum Communications Realized
Yasuhiko Arakawa; Masahide Sasaki; Hideyuki Sotobayashi, Editor(s)

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