English

T-duality and spacetime supersymmetry

High Energy Physics - Theory 2009-10-28 v2

Abstract

We analyze in detail the possible breaking of spacetime supersymmetry under T-duality transformations. We find that when appropiate world-sheet effects are taken into account apparent puzzles concerning supersymmetry in spacetime are solved. We study T-duality in general heterotic σ\sigma-models analyzing possible anomalies, and we find some modifications of Buscher's rules. We then work out a simple but representative example which contains most of the difficulties. We also consider the issue of supersymmetry versus duality for marginal deformations of WZW models and present a mechanism that restores supersymmetry dynamically in the effective theory.

Keywords

Cite

@article{arxiv.hep-th/9507112,
  title  = {T-duality and spacetime supersymmetry},
  author = {E. Alvarez and L. Alvarez-Gaume and I. Bakas},
  journal= {arXiv preprint arXiv:hep-th/9507112},
  year   = {2009}
}

Comments

28 pages, harvmac/ a few corrections and references added; to appear in Nuclear Physics B

R2 v1 2026-07-22T15:55:35.756Z