title: Experimental interference of independent photons.
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)%.
authors.affiliation: Institute for Experimental Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria.
authors.forename: Rainer
authors.initials: R
authors.lastname: Kaltenbaek
authors.forename: Bibiane
authors.initials: B
authors.lastname: Blauensteiner
authors.forename: Marek
authors.initials: M
authors.lastname: Zukowski
authors.forename: Markus
authors.initials: M
authors.lastname: Aspelmeyer
authors.forename: Anton
authors.initials: A
authors.lastname: Zeilinger