Phys. Rev. A 68, 032310 (2003) [13 pages]Measurement-induced nonlinearity in linear opticsReceived 15 May 2003; published 22 September 2003 We investigate the generation of nonlinear operators with single-photon sources, linear optical elements, and appropriate measurements of auxiliary modes. We provide a framework for the construction of useful single-mode and two-mode quantum gates necessary for all-optical quantum information processing. We focus our attention generally on using minimal physical resources while providing a transparent and algorithmic way of constructing these operators. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.68.032310
DOI:
10.1103/PhysRevA.68.032310
PACS:
03.67.Lx, 42.50.-p, 03.65.Ta
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