Faithful hierarchy of genuine $n$-photon quantum non-Gaussian light

Faithful hierarchy of genuine $n$-photon quantum non-Gaussian light

Phys. Rev. Lett. 123, 043601 (2019) Light is an essential tool for connections between quantum devices and for diagnostic of processes in quantum technology. Both applications deal with advanced nonclassical states beyond Gaussian coherent and squeezed states. Current development requires a loss-tol...

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Hauptverfasser: Lachman, Lukáš, Straka, Ivo, Hloušek, Josef, Ježek, Miroslav, Filip, Radim
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description Phys. Rev. Lett. 123, 043601 (2019) Light is an essential tool for connections between quantum devices and for diagnostic of processes in quantum technology. Both applications deal with advanced nonclassical states beyond Gaussian coherent and squeezed states. Current development requires a loss-tolerant diagnostic of such nonclassical aspects. We propose and experimentally verify a faithful hierarchy of genuine $n$-photon quantum non-Gaussian light. We conclusively witnessed 3-photon quantum non-Gaussian light in the experiment. Measured data demonstrates a direct applicability of the hierarchy for a large class of real states.
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title Faithful hierarchy of genuine $n$-photon quantum non-Gaussian light
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