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Stability of non-SUSY vacua
  OKC/Nordita High-Energy Physics Theory seminar

Monday 30 October 2017
from 13:15 to 14:15
at 132:028
Speaker : Sergio Vargas Avila (Uppsala U.)
Abstract : We consider known examples of non-supersymmetric AdS7 and AdS4 solutions arising from compactifications of massive type IIA supergravity and study their stability, taking into account the coupling between closed- and open-string sector excitations. Generically, open strings are found to develop modes with masses below the Breitenlohner-Freedman (BF) bound. We comment on the relation with the Weak Gravity Conjecture, and how this analysis may play an important role in examining the validity of non-supersymmetric constructions in string theory. We discuss some upcoming results on the possibility of brane polarization or instanton-like decays in these backgrounds. The talk will be based mostly on 1708.03293, 1611.01395 and 1605.09289.

Nordita  | Last modified 26 October 2017 17:35  |  HELP