Non-perturbative evaluation for anomalous dimension in 2-dimensional O(3) sigma model
High Energy Physics - Lattice
2018-06-20 v2
Abstract
We calculate the wave-function renormalization in 2-dimensional O(3) sigma model, non- perturbatively. It is evaluated in a box with a finite spatial extent. We determine the anomalous dimension in the finite volume scheme through an analysis of the step scaling function. Results are compared with a perturbative evaluation, and the reasonable behavior is confirmed.
Cite
@article{arxiv.1802.01140,
title = {Non-perturbative evaluation for anomalous dimension in 2-dimensional O(3) sigma model},
author = {Sergio Calle Jimenez and Makoto Oka and Kiyoshi Sasaki},
journal= {arXiv preprint arXiv:1802.01140},
year = {2018}
}
Comments
43 pages, 9 figures