2 papers
hep-lat2025
Large fluctuations in NSPT computations: a lesson from non-linear sigma models
P. Baglioni, F. Di Renzo
In the last three decades, Numerical Stochastic Perturbation Theory (NSPT) has proven to be an excellent tool for calculating perturbative expansions in theories such as Lattice QC…
hep-lat2024
Taming NSPT fluctuations in Non-Linear Sigma Model: simulations in the large regime
Paolo Baglioni, Francesco Di Renzo
The Non-Linear Sigma Model (NLSM) is an example of a field theory on a target space exhibiting intricate geometry. One remarkable characteristic of the NLSM is asymptotic freedom,…