Preamplified photodetectors for high-fidelity postselecting optical devices
arXiv:quant-ph/0612100 · doi:10.1103/PhysRevA.75.012335
Abstract
The fidelity of postselecting devices based on direct photon number detection can be significantly improved by insertion of a phase-insensitive optical amplifier in front of the detector. The scheme is simple, and the cost to the probability of obtaining the appropriate detector outcome is low.
5 pages, 7 figures, typos corrected and Journal Ref Added
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