Quantum interference with photon pairs created in spatially separated sources

H. de Riedmatten, I. Marcikic, W. Tittel, H. Zbinden, and N. Gisin
Phys. Rev. A 67, 022301 – Published 6 February 2003
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Abstract

We report on a quantum interference experiment to probe the coherence between two photons coming from nondegenerate photon pairs at telecom wavelength created in spatially separated sources. The two photons are mixed on a beam splitter and we observe a reduction of up to 84% in the net coincidence count rate when the photons are made indistinguishable. This experiment constitutes an important step towards the realization of quantum teleportation and entanglement swapping with independent sources.

  • Received 27 August 2002

DOI:https://doi.org/10.1103/PhysRevA.67.022301

©2003 American Physical Society

Authors & Affiliations

H. de Riedmatten1, I. Marcikic1, W. Tittel1,2, H. Zbinden1, and N. Gisin1

  • 1Group of Applied Physics-Optique, University of Geneva, Geneva, Switzerland
  • 2Danish Quantum Optics Center, Institute for Physics and Astronomy, University of Aarhus, Aarhus, Denmark

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Vol. 67, Iss. 2 — February 2003

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