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Extended phase-matching conditions for improved entanglement generation

Vittorio Giovannetti·Lorenzo Maccone·Jeffrey H. Shapiro·Franco N. C. Wong
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Abstract

Extended phase-matching conditions for spontaneous parametric down-conversion are examined. By augmenting the conventional phase-matching conditions, they permit the creation of a class of frequency-entangled states that generalizes the usual twin-beam biphoton state. An experimental characterization of these states is possible through interferometric coincidence counting.

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Vittorio Giovannetti, Lorenzo Maccone, Jeffrey H. Shapiro, Franco N. C. Wong. 2002-08-21. Extended phase-matching conditions for improved entanglement generation. https://doi.org/10.1103/physreva.66.043813

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