Abstract
We investigate linear optical approaches to quantum information processing, clarifying how linear optics and projective measurements can be used to create designer optical nonlinearities at the few photon level. We apply the lessons learned to develop optimized schemes for generating entangled photonic states for quantum imaging, with super-resolution below the Rayleigh limit, and for quantum sensing, with super-sensitivity below the shot-noise limit.
© 2007 Optical Society of America
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