Phys. Rev. A 62, 013809 (2000) [5 pages]Three-photon Hong-Ou-Mandel interference at a multiport mixerReceived 15 December 1999; published 14 June 2000 We consider a six-port triangular arrangement of beam splitters designed to couple three electromagnetic fields through U(3) unitary transformations. We present conditions for Hong-Ou-Mandel destructive interference of output triple coincidences when single photons are presented, one at each of the three input ports. Unlike the corresponding four-port effect, three-photon Hong-Ou-Mandel interference is sensitive to mixer phases and input-output port reversal. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.62.013809
DOI:
10.1103/PhysRevA.62.013809
PACS:
42.50.Ar, 42.25.Hz, 03.65.Fd
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