English

More Analytic Bootstrap: Nonperturbative Effects and Fermions

High Energy Physics - Theory 2019-09-04 v2 Statistical Mechanics

Abstract

We develop the analytic bootstrap in several directions. First, we discuss the appearance of nonperturbative effects in the Lorentzian inversion formula, which are exponentially suppressed at large spin but important at finite spin. We show that these effects are important for precision applications of the analytic bootstrap in the context of the 3d Ising and O(2) models. In the former they allow us to reproduce the spin-2 stress tensor with error at the 10510^{-5} level while in the latter requiring that we reproduce the stress tensor allows us to predict the coupling to the leading charge-2 operator. We also extend perturbative calculations in the lightcone bootstrap to fermion 4-point functions in 3d, predicting the leading and subleading asymptotic behavior for the double-twist operators built out of two fermions.

Keywords

Cite

@article{arxiv.1904.00032,
  title  = {More Analytic Bootstrap: Nonperturbative Effects and Fermions},
  author = {Soner Albayrak and David Meltzer and David Poland},
  journal= {arXiv preprint arXiv:1904.00032},
  year   = {2019}
}

Comments

37 pages, 4 figures, 2 tables, v2: Improved discussion of generating function and updated results for Ising and O(2) model

R2 v1 2026-06-23T08:23:37.709Z