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Paper detail

Entangled state generation with an intrinsically pure single-photon source and a weak coherent source

We report on the experimental generation of an entangled state with a spectrally pure heralded single-photon state and a weak coherent state. By choosing group-velocity matching in the nonlinear crystal, our system for producing entangled photons was 60 times brighter than that in the earlier experiment [Phys. Rev. Lett. 90, 240401 (2003)], with no need of bandpass filters. This entanglement system is useful for quantum information protocols that require indistinguishable photons from independent sources.

preprint2013arXivOpen access
Rui-Bo JinRyosuke ShimizuFumihiro KanedaYasuyoshi MitsumoriHideo KosakaKeiichi Edamatsu
quant-ph
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Rui-Bo JinRyosuke ShimizuFumihiro KanedaYasuyoshi MitsumoriHideo KosakaKeiichi Edamatsu

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