Author

Hao Dai

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Preprint Aug 2026

Uncovering Non-Gaussianity through Multi-Copy Symmetries

Gaussian states are fundamental in continuous-variable quantum information, yet characterizing non-Gaussianity remains challenging due to the non-convexity of the Gaussian set. Existing witnesses typically rely on Wigner negativity or other information-theoretic quantities. In this work, we develop a group-theoretic, m...

Hao Dai, Yue Zhang · 0 citations