English

Exceptional algebroids and type IIA superstrings

High Energy Physics - Theory 2024-12-02 v2 Mathematical Physics Differential Geometry math.MP

Abstract

We study exceptional algebroids in the context of warped compactifications of type IIA string theory down to nn dimensions, with n6n\le 6. In contrast to the M-theory and type IIB case, the relevant algebroids are no longer exact, and their locali moduli space is no longer trivial, but has 55 distinct points. This relates to two possible scalar deformations of the IIA theory. The proof of the local classification shows that, in addition to these scalar deformations, one can twist the bracket using a pair of 11-forms, a 22-form, a 33-form, and a 44-form. Furthermore, we use the analysis to translate the classification of Leibniz parallelisable spaces (corresponding to maximally supersymmetric consistent truncations) into a tractable algebraic problem. We finish with a discussion of the Poisson-Lie U-duality and examples given by tori and spheres in 22, 33, and 44 dimensions.

Keywords

Cite

@article{arxiv.2202.00355,
  title  = {Exceptional algebroids and type IIA superstrings},
  author = {Ondrej Hulik and Fridrich Valach},
  journal= {arXiv preprint arXiv:2202.00355},
  year   = {2024}
}

Comments

18 pages, accepted version, added Conclusions, small changes

R2 v1 2026-06-24T09:12:57.089Z