Phys. Rev. A 66, 043813 (2002) [9 pages]Extended phase-matching conditions for improved entanglement generationReceived 1 July 2002; published 30 October 2002 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. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.043813
DOI:
10.1103/PhysRevA.66.043813
PACS:
42.50.Dv, 03.65.Ud, 03.67.-a, 42.25.Hz
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