Physical Review Letters
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Quantum Non-Gaussianity Criterion Based on Photon Correlations ${g}^{(2)}$ and ${g}^{(3)}$
Author(s): Christoph Hotter, Clara Henke, Cornelis Jacobus van Diepen, Peter Lodahl, and Anders Søndberg Sørensen
Quantum non-Gaussian states, which cannot be written as mixtures of Gaussian states, are necessary to achieve a quantum advantage in continuous variable systems. They represent an important benchmark for the realization of an advanced quantum light source, as they cannot be made by simple means such… [Phys. Rev. Lett. 136, 243601] Published Tue Jun 16, 2026
