On-demand single-photon state generation via nonlinear absorption

Details On-demand single-photon state generation via nonlinear absorption On-demand single-photon state generation via nonlinear absorption

2004-05-22

arxiv.org/abs/quant-ph/0405131v1

Physics

Quantum Physics

5 pages, 2 figures, to appear in PRA. To be published in PRA

Scientific paper

10.1103/PhysRevA.70.013814

We propose a method for producing on-demand single-photon states based on collision-induced exchanges of photons and unbalanced linear absorption between two single-mode light fields. These two effects result in an effective nonlinear absorption of photons in one of the modes, which can lead to single photon states. A quantum nonlinear attenuator based on such a mechanism can absorb photons in a normal input light pulse and terminate the absorption at a single-photon state. Because the output light pulses containing single photons preserve the properties of the input pulses, we expect this method to be a means for building a highly controllable single photon source.

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