Marginal deformations of WZW models and the classical Yang-Baxter equation
High Energy Physics - Theory
2019-06-27 v2
Abstract
We show how so-called Yang-Baxter (YB) deformations of sigma models, based on an R-matrix solving the classical Yang-Baxter equation (CYBE), give rise to marginal current-current deformations when applied to the Wess-Zumino-Witten (WZW) model. For non-compact groups these marginal deformations are more general than the ones usually considered, since they can involve a non-abelian current subalgebra. We classify such deformations of the AdS(3) x S(3) string.
Cite
@article{arxiv.1812.07287,
title = {Marginal deformations of WZW models and the classical Yang-Baxter equation},
author = {Riccardo Borsato and Linus Wulff},
journal= {arXiv preprint arXiv:1812.07287},
year = {2019}
}
Comments
29 pages; v2: Clarification of marginality condition from conformal pert. theory and of non-SUGRA solution (R4). Appendix E improved. Published version