English

Five loop renormalization of $\phi^3$ theory with applications to the Lee-Yang edge singularity and percolation theory

High Energy Physics - Theory 2021-07-07 v2 Disordered Systems and Neural Networks Statistical Mechanics High Energy Physics - Lattice

Abstract

We apply the method of graphical functions that was recently extended to six dimensions for scalar theories, to ϕ3\phi^3 theory and compute the β\beta function, the wave function anomalous dimension as well as the mass anomalous dimension in the \mboxMS\overline{\mbox{MS}} scheme to five loops. From the results we derive the corresponding renormalization group functions for the Lee-Yang edge singularity problem and percolation theory. After determining the ε\varepsilon expansions of the respective critical exponents to O(ε5)\mathcal{O}(\varepsilon^5) we apply recent resummation technology to obtain improved exponent estimates in 3, 4 and 5 dimensions. These compare favourably with estimates from fixed dimension numerical techniques and refine the four loop results. To assist with this comparison we collated a substantial amount of data from numerical techniques which are included in tables for each exponent.

Keywords

Cite

@article{arxiv.2103.16224,
  title  = {Five loop renormalization of $\phi^3$ theory with applications to the Lee-Yang edge singularity and percolation theory},
  author = {M. Borinsky and J. A. Gracey and M. V. Kompaniets and O. Schnetz},
  journal= {arXiv preprint arXiv:2103.16224},
  year   = {2021}
}

Comments

54 pages, 15 figures; v2: additional summary tables and references added - version to be published in PRD