Theoretical Physics Seminar: Alessandra Gnecchi

  • Date: –15:15
  • Location:
  • Lecturer: Alessandra Gnecchi
  • Organiser: Vladimir Procházka
  • Contact person: Vladimir Procházka
  • Seminarium

On AdS7 Stability – a perturbative and non-perturbative analysis

The stability of non-supersymmetric vacua obtained from string theory is receiving a lot of attention due to its implications for the recent generalizations of the Weak Gravity Conjecture. Starting from the known classification of supersymmetric AdS7 vacua in massive type IIA supergravity, I will present the study of their non-supersymmetric counterparts. For a large subset of them, perturbative instabilities can be found both from a 7D Supergravity analysis as well as from the study of polarization of the D6 brane action in 10D. For the remaining, perturbative stable ones, I will show the existence of a non-perturbative decay channel mediated by an NS5 bubble nucleation.