Realization of the einstein-podolsky-rosen paradox using momentumand position-entangled photons from spontaneous parametric down conversion

John C. Howell*, Ryan S. Bennink, Sean J. Bentley, R. W. Boyd

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

450 Scopus citations

Abstract

The momentum-position realization of the Einstein-Podlsky-Rosen (EPR) paradox from spontaneous parametric down conversion was analyzed using direct detection in near and far fields of photons. A pump photon was absorbed by nonlinear medium and reemitted as two photons each with approximately half the energy of pump photon in parametric down conversion. The position or momentum of unmeasured particle becomes reality when corresponding quantity of other particle was measured as observed by EPR. The results show that two-photon momentum-position variance violates the bounds for the EPR and separability criteria.

Original languageAmerican English
Article number210403
Pages (from-to)210403-1-210403-4
JournalPhysical Review Letters
Volume92
Issue number21
DOIs
StatePublished - 28 May 2004
Externally publishedYes

Bibliographical note

Funding Information:
J. C. H. acknowledges support from the NSF, from Research Corporation, and from University of Rochester. R. W. B. gratefully acknowledges support by ARO under Contract No. DAAD19-01-1-0623 and by ONR under Contract No. N00014-02-1-0797.

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