2016/12/31 by J. Mourad, A. Sagnotti · 1 citation
Physics and Astronomy · Mathematics · #hep-th #gr-qc #math-ph #math.MP
paper · pdf · doi:10.1016/j.physletb.2017.02.053
13 pages, LaTeX. References added. Final version to appear in Phys. Lett. B
arxiv created 2017/02/22 · arxiv updated 2017/04/05
We describe how unbounded three--form fluxes can lead to families of AdS3 × S7 vacua, with constant dilaton profiles, in the USp(32) model with "brane supersymmetry breaking" and in the U(32) 0'B model, if their (projective--)disk dilaton tadpoles are taken into account. We also describe how, in the SO(16) × SO(16) heterotic model, if the torus vacuum energy Λ is taken into account, unbounded seven--form fluxes can support similar AdS7 × S3 vacua, while unbounded three--form fluxes, when combined with internal gauge fields, can support AdS3 × S7 vacua, which continue to be available even if Λ is neglected. In addition, special gauge field fluxes can support, in the SO(16) × SO(16) heterotic model, a set of AdSn× S10-n vacua, for all n=2,..,8. String loop and α' corrections appear under control when large form fluxes are allowed.