Single photons on pseudodemand from stored parametric down-conversion

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PhysRevA.66.042303.pdf (161.63 KB)

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https://journals.aps.org/pra/abstract/10.1103/PhysRevA.66.042303

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https://doi.org/10.1103/PhysRevA.66.042303
 http://hdl.handle.net/11603/19291

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UMBC Physics Department
UMBC Joint Center for Earth Systems Technology (JCET)

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2002-10-10

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journal articles
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T. B. Pittman, B. C. Jacobs, and J. D. Franson, Single photons on pseudodemand from stored parametric down-conversion, Phys. Rev. A 66, 042303 (2002), https://doi.org/10.1103/PhysRevA.66.042303

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©2002 The American Physical Society

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Abstract

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.