Preamplified photodetectors for high-fidelity postselecting optical devices

Details Preamplified photodetectors for high-fidelity postselecting optical devices Preamplified photodetectors for high-fidelity postselecting optical devices

2006-12-13

arxiv.org/abs/quant-ph/0612100v2

Phys. Rev. A 75, 012335 (2007)

Physics

Quantum Physics

5 pages, 7 figures, typos corrected and Journal Ref Added

Scientific paper

10.1103/PhysRevA.75.012335

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.

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