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Experimental interference of independent photons

Rainer Kaltenbaek·Bibiane Blauensteiner·Marek Zukowski·Markus Aspelmeyer·Anton Zeilinger
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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 non-classical interference of two single photons originating from two independent, separated sources, which were actively synchronized with an r.m.s. timing jitter of 260 fs. The resulting (two-photon) interference visibility was 83(+/-)4 %.

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Rainer Kaltenbaek, Bibiane Blauensteiner, Marek Zukowski, Markus Aspelmeyer, Anton Zeilinger. 2006-04-04. Experimental interference of independent photons. https://doi.org/10.1103/physrevlett.96.240502

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