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