A compact free-space source produces indistinguishable polarization-entangled photons with record 99.11% visibility, 96.3% successive-photon HOM interference, 68% heralded efficiency, and 88.6% local-oscillator visibility.
Superconducting nanowire single-photon detectors with 98% system detection efficiency at 1550 nm,
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High-performance source of indistinguishable polarization-entangled photons with a local oscillator reference for quantum networking
A compact free-space source produces indistinguishable polarization-entangled photons with record 99.11% visibility, 96.3% successive-photon HOM interference, 68% heralded efficiency, and 88.6% local-oscillator visibility.