3 papers
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…
cond-mat.str-el2025
Universality of the topological phase transition in the interacting Haldane model
Simone Fabbri, Alessandro Giuliani, Robin Reuvers
The Haldane model is a standard tight-binding model describing electrons hopping on a hexagonal lattice subject to a transverse, dipolar magnetic field. We consider its interacting…