The thermal bootstrap for the critical O(N) model
High Energy Physics - Theory
2025-06-16 v3
Abstract
We propose a numerical method to estimate one-point functions and the free-energy density of conformal field theories at finite temperature by solving the Kubo-Martin-Schwinger condition for the two-point functions of identical scalars. We apply the method for the critical O(N) model for N = 1,2,3 in 3 d 4. We find agreement with known results from Monte Carlo simulations and previous results for the 3d Ising model, and we provide new predictions for N = 2,3.
Cite
@article{arxiv.2411.00978,
title = {The thermal bootstrap for the critical O(N) model},
author = {Julien Barrat and Enrico Marchetto and Alessio Miscioscia and Elli Pomoni},
journal= {arXiv preprint arXiv:2411.00978},
year = {2025}
}
Comments
5 pages plus supplemental material, refs. updated