Vacuum effects on interference in two-photon down conversion

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)1428-1435
Journal / PublicationPhysical Review A
Volume40
Issue number3
Publication statusPublished - 1989
Externally publishedYes

Abstract

A proposed experiment is analyzed theoretically. In the proposed experiment two coherent pump waves fall on two identical nonlinear crystals, down-converted signal and idler beams from the two crystals are mixed by two beam splitters, and the coincidence counting rate for photons leaving the beam splitters is measured. We show that this counting rate depends on the phase difference between the two coherent pump waves, and results from the interference of the vacuum with the down-converted photons. The experiment could be used to look for locality violations along the lines recently proposed by Grangier, Potasek, and Yurke [Phys. Rev. A 38, 3132 (1988)], but without the need for a coherent reference beam for homodyning. © 1989 The American Physical Society.

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Citation Format(s)

Vacuum effects on interference in two-photon down conversion. / Ou, Z. Y.; Wang, L. J.; Mandel, L.

In: Physical Review A, Vol. 40, No. 3, 1989, p. 1428-1435.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review