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Citation

BibTex format

@article{Arias-Tamargo:2026:10.1103/h56x-zgg8,
author = {Arias-Tamargo, G and Hull, C and Velásquez, Cotini Hutt ML},
doi = {10.1103/h56x-zgg8},
journal = {Physical Review D},
title = {Nonrenormalization of coupling constants from categorical symmetries in two dimensions},
url = {http://dx.doi.org/10.1103/h56x-zgg8},
volume = {113},
year = {2026}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:p>                    We study the role of categorical symmetries in constraining the renormalization of couplings in two-dimensional nonlinear sigma models with a Wess-Zumino term. A large class of these theories admits self-duality symmetries associated with discrete gauging and T-duality. They are generically nonconformal, but we argue that a particular coupling is protected from quantum corrections by the categorical symmetry. We give strong evidence for this claim by showing that the                    <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline">                      <a:mi>β</a:mi>                    </a:math>                    -function for this coupling vanishes to 2-loop order if and only if this symmetry is present. Furthermore, in cases where the target space is a group manifold, the nonrenormalization result can be proven to hold nonperturbatively.                  </jats:p>
AU  - Arias-Tamargo,G
AU  - Hull,C
AU  - Velásquez,Cotini Hutt ML
DO  - 10.1103/h56x-zgg8
PY  - 2026///
SN  - 2470-0010
TI  - Nonrenormalization of coupling constants from categorical symmetries in two dimensions
T2  - Physical Review D
UR  - http://dx.doi.org/10.1103/h56x-zgg8
UR  - https://doi.org/10.1103/h56x-zgg8
VL  - 113
ER  -
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