Experimental Interference of Independent Photons

Rainer Kaltenbaek, Bibiane Blauensteiner, Marek Żukowski, Markus Aspelmeyer, and Anton Zeilinger
Phys. Rev. Lett. 96, 240502 – Published 21 June 2006

Abstract

Interference of photons emerging from independent sources is essential for modern quantum-information processing schemes, above all quantum repeaters and linear-optics quantum computers. We report an observation of nonclassical interference of two single photons originating from two independent, separated sources, which were actively synchronized with a rms timing jitter of 260 fs. The resulting (two-photon) interference visibility was (83±4)%.

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  • Received 7 March 2006

DOI:https://doi.org/10.1103/PhysRevLett.96.240502

©2006 American Physical Society

Authors & Affiliations

Rainer Kaltenbaek and Bibiane Blauensteiner

  • Institute for Experimental Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria

Marek Żukowski

  • Institute for Experimental Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria and Institute of Theoretical Physics and Astrophysics, University of Gdansk, Wita Stwosza 57, PL-08-952 Gdansk, Poland

Markus Aspelmeyer and Anton Zeilinger

  • Institute for Experimental Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria and Institute for Quantum Optics and Quantum Information (IQOQI), Austrian Academy of Sciences, Boltzmanngasse 3, A-1090 Vienna, Austria

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Issue

Vol. 96, Iss. 24 — 23 June 2006

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