Sigma model approach to string theory
High Energy Physics - Theory
2026-02-12 v1
Abstract
A review of the -model approach to derivation of effective string equations of motion for the massless fields is presented. We limit our consideration to the case of the tree approximation in the closed bosonic string theory.
Keywords
Cite
@article{arxiv.2602.10977,
title = {Sigma model approach to string theory},
author = {Arkady A. Tseytlin},
journal= {arXiv preprint arXiv:2602.10977},
year = {2026}
}
Comments
54 pages. Based on lectures at Superstrings '88, ICTP Trieste Spring School, 11-19 April 1988