Engineering optical hybrid entanglement between discrete- and continuous-variable states

Abstract : The generation and manipulation of hybrid entanglement of light involving discrete-and continuous-variable states have recently appeared as essential resources towards the realization of heterogeneous quantum networks. Here we investigate a scheme for the remote generation of hybrid entanglement between particle-like and wave-like optical qubits based on a non-local heralding photon detection. We also extend this scheme with additional local or non-local detections. An additional local heralding allows the resulting state to exhibit a higher fidelity with the targeted entangled qubits while a two-photon non-local heralding detection gives access to a higher dimensionality in the discrete-variable subspace, resulting thereby in the generation of hybrid entangled qutrits. The implementation of the presented schemes, in combination with ongoing works on high-fidelity quantum state engineering, will provide novel non-classical light sources for the development of optical hybrid architectures.
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Soumis le : lundi 9 septembre 2019 - 17:03:52
Dernière modification le : mardi 10 septembre 2019 - 01:24:05

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Kun Huang, Hanna Le Jeannic, Olivier Morin, Tom Darras, Giovanni Guccione, et al.. Engineering optical hybrid entanglement between discrete- and continuous-variable states. New Journal of Physics, Institute of Physics: Open Access Journals, 2019, 21 (8), pp.083033. ⟨10.1088/1367-2630/ab34e7⟩. ⟨hal-02282110⟩

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