Gross–Neveu model

The Gross–Neveu model is a theoretical model in quantum field theory that describes a type of interacting fermionic field. It was initially introduced by David J. Gross and Igor J. R. Neveu in 1974. The model is significant in the study of non-abelian gauge theories and serves as a simpler setting to explore concepts related to quantum field theories, including symmetry breaking and phase transitions.