Efficient photon counting and single-photon generation using resonant nonlinear optics

Details Efficient photon counting and single-photon generation using resonant nonlinear optics Efficient photon counting and single-photon generation using resonant nonlinear optics

2003-04-17

arxiv.org/abs/quant-ph/0304121v1

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevA.67.061802

The behavior of an atomic double lambda system in the presence of a strong off-resonant classical field and a few-photon resonant quantum field is examined. It is shown that the system possesses properties that allow a single-photon state to be distilled from a multi-photon input wave packet. In addition, the system is also capable of functioning as an efficient photodetector discriminating between one- and two-photon wave packets with arbitrarily high efficiency.

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