Can Two-Photon Interference be Considered the Interference of Two Photons?

T. B. Pittman, D. V. Strekalov, A. Migdall, M. H. Rubin, A. V. Sergienko, and Y. H. Shih
Phys. Rev. Lett. 77, 1917 – Published 2 September 1996
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Abstract

We report on a “postponed compensation” experiment in which the observed two-photon entangled state interference cannot be pictured in terms of the overlap of the two individual photon wave packets of a parametric down-conversion pair on a beam splitter. In the sense of a quantum eraser, the distinguishability of the different two-photon Feynman amplitudes leading to a coincidence detection is removed by delaying the compensation until after the output of an unbalanced two-photon interferometer.

  • Received 6 February 1996

DOI:https://doi.org/10.1103/PhysRevLett.77.1917

©1996 American Physical Society

Authors & Affiliations

T. B. Pittman1, D. V. Strekalov1, A. Migdall2, M. H. Rubin1, A. V. Sergienko1, and Y. H. Shih1

  • 1Department of Physics, University of Maryland Baltimore County, Baltimore, Maryland 21228
  • 2Radiometric Physics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899

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Vol. 77, Iss. 10 — 2 September 1996

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