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Four-wave mixing: Photon statistics and the impact on a co-propagating quantum signal

Almeida, A. ; Silva, N. A. ; André, P.S ; Pinto, A. N.

Four-wave mixing: Photon statistics and the impact on a co-propagating quantum signal, Proc Conf. on Quantum Cryptography - QCRYPT, Singapore, Singapore, Vol. 1, pp. 1 - 3, September, 2012.

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Abstract
The four-wave mixing (FWM) process can be
used as an approximation to a single-photon source. Here,
we present the photon statistics of FWM, and study its
impact on a co-propagating coherent quantum signal. We
found three different statistical regimes, depending on the
average number of photons per pulse, . When   0:1,
FWM source has the same behavior as attenuated laser
sources. A technical version of this work is available in [1].