Coherent temporal filtering with a quantum pulse gate prepares heralded single photons with purity above 0.90 from a spectrally multimode parametric down-conversion source, whereas conventional intensity filtering leaves them mixed.
T wo-particle bosonic-fermionic quantum walk via integrated photonics,
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Coherent temporal filtering of multimode parametric down-conversion using a quantum pulse gate
Coherent temporal filtering with a quantum pulse gate prepares heralded single photons with purity above 0.90 from a spectrally multimode parametric down-conversion source, whereas conventional intensity filtering leaves them mixed.