English

Integrable sigma models with complex and generalized complex structures

High Energy Physics - Theory 2025-05-20 v4

Abstract

Using the general method presented by Mohammedi \cite{NM} for the integrability of a sigma model on a manifold, we investigate the conditions for having an integrable deformation of the general sigma model on a manifold with a complex structure. On a Lie group, these conditions are satisfied by using the zeros of the Nijenhuis tensor. We then extend this formalism to a manifold, especially a Lie group, with a generalized complex structure. We demonstrate that, for the examples of integrable sigma models with generalized complex structures on the Lie groups A4,8\mathbf{A_{4,8}} and A4,10\mathbf{A_{4,10}}, under special conditions, the perturbed terms of the actions are identical to the WZ terms.

Keywords

Cite

@article{arxiv.2309.13413,
  title  = {Integrable sigma models with complex and generalized complex structures},
  author = {A. Rezaei-Aghdam and A. Taghavi},
  journal= {arXiv preprint arXiv:2309.13413},
  year   = {2025}
}

Comments

19 pages. Some corrections, one reference and appendix are added