Concatenated beam splitters, optical feed-forward, and the nonlinear sign gate

Kurt Jacobs and Jonathan P. Dowling
Phys. Rev. A 74, 064304 – Published 26 December 2006

Abstract

We consider a nonlinear sign gate implemented using a sequence of two beam splitters, and consider the use of further sequences of beam splitters to implement feed-forward so as to correct an error resulting from the first beam splitter. We obtain similar results to Scheel et al. [Phys. Rev. A 73, 034301 (2006)], in that we also find that our feed-forward procedure is only able to produce a very minor improvement in the success probability of the original gate.

  • Figure
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  • Received 27 June 2006

DOI:https://doi.org/10.1103/PhysRevA.74.064304

©2006 American Physical Society

Authors & Affiliations

Kurt Jacobs and Jonathan P. Dowling

  • Quantum Science and Technologies Group, Hearne Institute for Theoretical Physics, Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Tower Drive, Baton Rouge, Louisiana 70803, USA

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Issue

Vol. 74, Iss. 6 — December 2006

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