Measurement-induced nonlinearity in linear optics
Stefan Scheel, Kae Nemoto, William J. Munro, P. L. Knight · Physical Review A · 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.