Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of Russian Laser Research

EPR experiment and two-photon interferometry: Report of a two-photon interference experiment

Yanhua H. Shih, Morton H. Rubin, Alexander V. Sergienko

Published Jan 1, 1991• 1 citation
Publisher
DOI
10.1007/bf01140239

Related papers

EPR and Two‐Photon Interference Experiments Using Type‐II Parametric Downconversiona

Yanhua H. Shih, Alexander V. Sergienko, T. B. Pittman +1 more

Annals of the New York Academy of Sciences•Apr 1, 1995•4 citations

Phase-Dependent Two-Photon Interference: Two-Photon Interferometry

Z. Y. Ou

Springer eBooks•Jan 1, 2007•0 citations

EPR experiment and 2-photon interferometry: Report of a 2-photon interference experiment

Yanhua H. Shih, Morton H. Rubin, Alexander V. Sergienko

After a very brief review of the historical Einstein, Podolsky, and Rosen (EPR) experiments, a new two-photon interference type EPR experiment is reported. A two-photon state was generated by optical parametric down conversion. Pairs of light quanta with degenerate frequency but divergent directions of propagation were sent to two independent Michelson interferometers. First and second order interference effectors were studied. Different than other reports, we observed that the second order interference visibility vanished when the optical path difference of the interferometers were much less than the coherence length of the pumping laser beam. However, we also observed that the second order interference behaved differently depending on whether the interferometers were set at equal or different optical path differences.

•Feb 1, 1992•0 citations

Two-Photon Interferometry I: Biphoton Interference

WORLD SCIENTIFIC eBooks•Sep 16, 2025•0 citations

Models of a two-photon Einstein-Podolsky-Rosen interference experiment

Morton H. Rubin, Yanhua H. Shih

Models of a two-photon interference experiment proposed by Franson to study the Einstein-Podolsky-Rosen (EPR) effect are presented. The experiment considers a pair of photons correlated in time and in frequency, each of which is passed through an interferometer. When the path difference through the two interferometers is set so there is no first-order interference, Franson showed that second-order interference between the two photons could occur with 100% visibility. In this paper both quantum and classical models are considered and the importance of the coincidence time window and the effect of the frequency correlation are shown. Calculations are presented for all settings of the interferometers. The EPR effect arises from entangled states; a brief discussion is given of the nature of the entangled state for this type of experiment.

Physical Review A•Jun 1, 1992•27 citations

Entangled Non-Local Quantum Interferometry

Giovanni Di Giuseppe, F. De Martini, D. Boschi +1 more

A novel quantum optical interference experiment based on a delayed correlation technique and involving photons prepared in a polarization-entangled state is presented. The resulting phenomenology is found to be determined by the simultaneous realization of several non-classical interference processes of distinct nature albeit strictly interrelated. A formal interpretation of the results is attempted by a standard quantum analysis and by the adoption of a set of interfering Feynman diagrams. In addition, a physical interpre-tation at a deeper level is undertaken by introducing for the system the basic theoretical background of a new concept in quantum optics: entangled interferometry. As a relevant application of this new paradigm, a novel two-photon welcher-weg argument within a delayed-choice experiment is presented. It leads to an unexpected complementarity puzzle which expresses the manifestation of the EPR non-locality within the general context of interferometry. PACS numbers: 03.65.Bz, 42.50.-p, 42.50.Wm.

Fortschritte der Physik•Nov 1, 1998•3 citations
After a very brief review of the historical Einstein, Podolsky, and Rosen (EPR) experiments, a new two-photon interference type EPR experiment is reported. A two-photon state was generated by optical parametric down conversion. Pairs of light quanta with degenerate frequency but divergent directions of propagation were sent to two independent Michelson interferometers. First and second order interference effectors were studied. Different than other reports, we observed that the second order interference visibility vanished when the optical path difference of the interferometers were much less than the coherence length of the pumping laser beam. However, we also observed that the second order interference behaved differently depending on whether the interferometers were set at equal or different optical path differences.
Models of a two-photon interference experiment proposed by Franson to study the Einstein-Podolsky-Rosen (EPR) effect are presented. The experiment considers a pair of photons correlated in time and in frequency, each of which is passed through an interferometer. When the path difference through the two interferometers is set so there is no first-order interference, Franson showed that second-order interference between the two photons could occur with 100% visibility. In this paper both quantum and classical models are considered and the importance of the coincidence time window and the effect of the frequency correlation are shown. Calculations are presented for all settings of the interferometers. The EPR effect arises from entangled states; a brief discussion is given of the nature of the entangled state for this type of experiment.
A novel quantum optical interference experiment based on a delayed correlation technique and involving photons prepared in a polarization-entangled state is presented. The resulting phenomenology is found to be determined by the simultaneous realization of several non-classical interference processes of distinct nature albeit strictly interrelated. A formal interpretation of the results is attempted by a standard quantum analysis and by the adoption of a set of interfering Feynman diagrams. In addition, a physical interpre-tation at a deeper level is undertaken by introducing for the system the basic theoretical background of a new concept in quantum optics: entangled interferometry. As a relevant application of this new paradigm, a novel two-photon welcher-weg argument within a delayed-choice experiment is presented. It leads to an unexpected complementarity puzzle which expresses the manifestation of the EPR non-locality within the general context of interferometry. PACS numbers: 03.65.Bz, 42.50.-p, 42.50.Wm.