English

The Variational Problem and Background Field in the Renormalization Group Method for Non-Linear Sigma Models

High Energy Physics - Theory 2024-03-01 v3 High Energy Physics - Lattice Mathematical Physics math.MP

Abstract

We study the variational problem as described by Balaban in his renormalization group method for Yang-Mills theories in d=3,4d= 3, 4 and adapt it to a class of Non-Linear Sigma Models in d=2d=2. The result of the variational problem is a minimal configuration which can serve as a classical background field in the renormalization group analysis.

Keywords

Cite

@article{arxiv.2204.08252,
  title  = {The Variational Problem and Background Field in the Renormalization Group Method for Non-Linear Sigma Models},
  author = {Abhishek Goswami},
  journal= {arXiv preprint arXiv:2204.08252},
  year   = {2024}
}

Comments

Proof of Theorem 1 reorganized, some changes in symmetry subgroup section, other minor changes. 20 pages

R2 v1 2026-06-24T10:50:49.391Z