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Experimental realization of a nondeterministic optical noiseless amplifier
2011
Physical Review A. Atomic, Molecular, and Optical Physics
Linear amplifiers are necessarily affected by a minimal amount of noise, which is needed in order to preserve the linearity and the unitarity prescribed by quantum mechanics. Such a limitation might be partially overcome if the process is realized by conditioning its operation on a trigger event, for instance, the result of a measurement. Here we present a detailed analysis of a noiseless amplifier, implemented using linear optics, a down-conversion-based single-photon source, and single-photon
doi:10.1103/physreva.83.063801
fatcat:g5bkudbdcfa4ffkeq7ybpon4ki