Single Photons on Pseudo-Demand from Stored Parametric Down-Conversion

Details Single Photons on Pseudo-Demand from Stored Parametric Down-Conversion Single Photons on Pseudo-Demand from Stored Parametric Down-Conversion

2002-05-16

arxiv.org/abs/quant-ph/0205103v1

Phys. Rev. A 66, 042303 (2002)

Physics

Quantum Physics

8 pages, 7 Figs., RevTex

Scientific paper

10.1103/PhysRevA.66.042303

We describe the results of a parametric down-conversion experiment in which the detection of one photon of a pair causes the other photon to be switched into a storage loop. The stored photon can then be switched out of the loop at a later time chosen by the user, providing a single photon for potential use in a variety of quantum information processing applications. Although the stored single photon is only available at periodic time intervals, those times can be chosen to match the cycle time of a quantum computer by using pulsed down-conversion. The potential use of the storage loop as a photonic quantum memory device is also discussed.

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