Generation of an arbitrary four-photon polarization-entangled decoherence-free state with cross-Kerr nonlinearity
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1646-3
Abstract: We present a new scheme to provide an arbitrary four-photon polarization-entangled state, which enables the encoding of single logical qubit information into a four-qubit decoherence-free subspace robustly against collective decoherence. With the assistance of the… read more here.
Keywords: four photon; polarization; photon polarization; arbitrary four ... See more keywords
Broadband pumped polarization entangled photon-pair source in a linear beam displacement interferometer
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DOI: 10.1063/1.5124416
Abstract: We experimentally demonstrate a source of polarization entangled photon-pairs based on a single periodically poled potassium titanyl phosphate crystal pumped with a broadband, free running laser diode. The crystal is placed within a linear beam-displacement… read more here.
Keywords: photon; entangled photon; linear beam; polarization entangled ... See more keywords
Entanglement swapping with autonomous polarization-entangled photon pairs from a warm atomic ensemble.
Sign Up to like & getrecommendations! Published in 2020 at "Optics letters"
DOI: 10.1364/ol.388613
Abstract: Entanglement swapping forms a key concept in the realization of scalable quantum networks and large-scale quantum communication. For the practical implementation of entanglement swapping, completely autonomous entanglement sources and a joint Bell-state measurement (BSM) between… read more here.
Keywords: entangled photon; entanglement swapping; atomic ensemble; entanglement ... See more keywords