Multipli-entangled photon spontaneous parametric down-conversion source

Michael L. Fanto; Reinhard K. Erdmann; Paul M. Alsing; Corey J. Peters; Enrique J. Galvez

doi:10.1117/12.883261

3 June 2011 Multipli-entangled photon spontaneous parametric down-conversion source

Michael L. Fanto, Reinhard K. Erdmann, Paul M. Alsing, Corey J. Peters, Enrique J. Galvez

Proceedings Volume 8057, Quantum Information and Computation IX; 805705 (2011) https://doi.org/10.1117/12.883261
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

In this work, we discuss a novel compact source that generates six pairs of entangled photons via spontaneous parametric down-conversion from a single pass of a pump beam through a crystal assembly. The experimental demonstrations reported are at 810 nm so as to utilize high quantum efficiency Si-APD detectors, but the design can be readily implemented in other wavelength regimes including the telecom bands near 1550 nm. An immediate application of this source enables particular multi-qubit cluster states to be generated in a highly compact unidirectional configuration. This can significantly simplify the interferometric stability, as well as feed-forward methods required in photon-based quantum logic circuitry.

Citation Download Citation

Michael L. Fanto, Reinhard K. Erdmann, Paul M. Alsing, Corey J. Peters, and Enrique J. Galvez "Multipli-entangled photon spontaneous parametric down-conversion source", Proc. SPIE 8057, Quantum Information and Computation IX, 805705 (3 June 2011); https://doi.org/10.1117/12.883261

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