Preprint
Jul 2026
Wigner negativity and stellar rank for SU(1,1) states
Quasiprobability distributions for systems endowed with SU(1,1) dynamical symmetry have received surprisingly little attention, despite the central role of this symmetry in two-photon physics, squeezed states, and nonlinear interferometry. Here, we fill this gap by constructing a full covariant family of $s$-ordered qu...
A. B. Klimov, Ariana S. Muñoz, Gerd Leuchs et al.
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