Polarization-stable long-distance interference of independent photons for quantum communications
T. Ferreira da Silva, D. Vitoreti, G. B. Xavier, G. P. Tempor\~ao, and, J. P. von der Weid
TL;DR
This paper demonstrates stable interference of independent photons over long-distance fiber links, a key advancement towards practical quantum communication systems.
Contribution
It presents the first stable, long-distance interference of independent photons with polarization control, enabling scalable quantum communication.
Findings
Achieved 47.8% interference visibility over 8.5 km fiber links
Maintained polarization control for stable interference
Paves the way for practical quantum communication protocols
Abstract
Interference between fully-independent faint laser sources over two 8.5-km full polarization-controlled fiber links was performed, with stable visibility of 47.8%, an essential step towards practical implementation of quantum communication protocols.
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