Resurgence of the large-charge expansion
High Energy Physics - Theory
2021-05-19 v2
Abstract
We study the O(2N) model at criticality in three dimensions in the double scaling limit of large N and large charge. We show that the large-charge expansion is an asymptotic series, and we use resurgence techniques to study the non-perturbative corrections and to extend the validity of the effective field theory to any value of the charge. We conjecture the general form of the non-perturbative behavior of the conformal dimensions for any value of N and find very good agreement with previous lattice data.
Keywords
Cite
@article{arxiv.2102.12488,
title = {Resurgence of the large-charge expansion},
author = {Nicola Dondi and Ioannis Kalogerakis and Domenico Orlando and Susanne Reffert},
journal= {arXiv preprint arXiv:2102.12488},
year = {2021}
}
Comments
references added, minor fixes