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Proceedings Paper

Photon counting schemes and performance of nondeterministic nonlinear gates in linear optics
Author(s): Stephen D. Bartlett; E. Diamanti; Barry C. Sanders; Yoshihisa Yamamoto
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Paper Abstract

The performance of nondeterministic nonlinear gates in linear optics relies on the photon counting scheme being employed and the efficiencies of the detectors in such schemes. We assess the performance of the nonlinear sign gate, which is a critical component of linear optical quantum computing, for two standard photon counting methods: the double detector array and the visible light photon counter. Our analysis shows that the double detector array is insufficient to provide the photon counting capability for effective nondeterministic nonlinear transformations, and we determine the gate fidelity for both photon counting methods as a function of detector efficiencies.

Paper Details

Date Published: 9 December 2002
PDF: 9 pages
Proc. SPIE 4821, Free-Space Laser Communication and Laser Imaging II, (9 December 2002); doi: 10.1117/12.451332
Show Author Affiliations
Stephen D. Bartlett, Macquarie Univ. (Australia)
E. Diamanti, Stanford Univ. (United States)
Barry C. Sanders, Macquarie Univ. (Australia)
Stanford Univ. (United States)
Yoshihisa Yamamoto, Stanford Univ. (United States)


Published in SPIE Proceedings Vol. 4821:
Free-Space Laser Communication and Laser Imaging II
Jennifer C. Ricklin; David G. Voelz, Editor(s)

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