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

Ivo Straka; Josef Hlou\v{s}ek; Luk\'a\v{s} Lachman; Miroslav Je\v{z}ek; Radim Filip

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

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arxiv 1810.02546 v2 pith:GJVDKD5X submitted 2018-10-05 quant-ph

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

Luk\'a\v{s} Lachman , Ivo Straka , Josef Hlou\v{s}ek , Miroslav Je\v{z}ek , Radim Filip This is my paper

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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.

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

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