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math-ph2026
Chiral Long-Range Order in three Euclidean Lattice Gross-Neveu Models
Simone Fabbri, Leonardo Goller
We prove the existence of Long-Range Order in a class of two-dimensional Euclidean lattice Gross-Neveu models with an even number of fermion flavors, covering three standard lattic…
math-ph2026
Non-perturbative renormalization for lattice massive QED: the ultraviolet problem
Simone Fabbri, Vieri Mastropietro, Bruno Renzi
We consider a lattice regularization, preserving Ward Identities (WI) and with a Wilson term, of the Massive QED, describing a fermion with mass and charge int…