Nonlinear interferometry via Fock-state projection |
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| Authors: | Khoury G Eisenberg H S Fonseca E J S Bouwmeester D |
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| Institution: | Department of Physics, University of California, Santa Barbara, California 93106, USA. khoury@physics.ucsb.edu |
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| Abstract: | We use a photon-number-resolving detector to monitor the photon-number distribution of the output of an interferometer, as a function of phase delay. As inputs we use coherent states with mean photon number up to seven. The postselection of a specific Fock (photon-number) state effectively induces high-order optical nonlinearities. Following a scheme by Bentley and Boyd Opt. Express 12, 5735 (2004).10.1364/OPEX.12.005735], we explore this effect to demonstrate interference patterns a factor of 5 smaller than the Rayleigh limit. |
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