Asymptotics in the bi-Yang-Baxter Sigma Model

Bibliographic Details
Title: Asymptotics in the bi-Yang-Baxter Sigma Model
Authors: Ashwinkumar, Meer, Orlando, Domenico, Reffert, Susanne, Sberveglieri, Giacomo
Publication Year: 2025
Collection: High Energy Physics - Theory
Subject Terms: High Energy Physics - Theory
More Details: Working in a sector of large charge is a powerful tool to analytically access models that are either strongly coupled or otherwise difficult to solve explicitly. In the context of integrable systems, Volin's method is exactly such a large-charge approach. In this note, we apply this method to the bi-Yang-Baxter deformed $SU(2)$ principal chiral model. Our main result is an explicit expression for the free energy density as an asymptotic expansion. We moreover determine the leading non-perturbative effects both via analytic methods and a resurgence analysis.
Comment: 28 pages, 2 figures
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2501.18458
Accession Number: edsarx.2501.18458
Database: arXiv
More Details
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