2 papers
hep-lat2026
Non-perturbative renormalization of the energy momentum tensor in the 2d O(3) nonlinear sigma model
Mika Lauk, Agostino Patella
The two-dimensional O(3) nonlinear sigma model is a well known toy model for studying non-perturbative phenomena in quantum field theory. A central challenge is the renormalization…
hep-lat2025
Energy-momentum tensor in the 2d non-linear sigma model on the lattice
Mika Lauk, Agostino Patella
The long-term goal of this project is the non-perturbative renormalization of the energy-momentum tensor in the 2d non-linear sigma model using different methods which have…