Single pairs of time-bin entangled photons
arXiv:1507.01876 · doi:10.1103/PhysRevA.92.033802
Abstract
Time-bin entangled photons are ideal for long-distance quantum communication via optical fibers. Here we present a source where, even at high creation rates, each excitation pulse generates at most one time-bin entangled pair. This is important for the accuracy and security of quantum communication. Our site-controlled quantum dot generates single polarization-entangled photon pairs, which are then converted, without loss of entanglement strength, into single time-bin entangled photon pairs.
20 pages, 6 figures
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