Critical scaling in the $N=1$ Thirring Model in $(2+1)d$
Abstract
The Thirring model in 2+1 with Dirac flavors can exhibit spontaneous U(U(U() breaking through fermion - antifermion condensation in the limit . With no small parameter in play the symmetry-breaking dynamics is strongly-interacting and quantitative work requires a fermion formulation accurately capturing global symmetries. We present simulation results for obtained with Wilson kernel domain wall fermions on , with . The extrapolation of the bilinear condensate as a function of coupling and bare mass is fitted to an empirical equation of state; the resulting critical exponents are significantly altered from previously obtained values, and for the first time resemble those emerging from analytic predictions based on approximate solutions to Schwinger-Dyson equations, consistent with a putative UV-stable renormalisation group fixed point. To address the non-perturbative issue of the value below which such a fixed point exists we present preliminary results obtained with .
Keywords
Cite
@article{arxiv.2601.16051,
title = {Critical scaling in the $N=1$ Thirring Model in $(2+1)d$},
author = {Simon Hands and Jude Worthy},
journal= {arXiv preprint arXiv:2601.16051},
year = {2026}
}
Comments
contributed talk at LATTICE 2025, Mumbai, 2-8 November 2025