Description |
In this talk, I discuss the two infinite families of Non-Supersymmetric AdS4 vacua, called Type 2) and Type 3) vacua, that arise in massive IIA supergravity with flux. Both families are perturbatively stable. I also discuss non-perturbative decays of these vacua to other susy and non-susy AdS4 vacua mediated by instantons in the thin wall approximation. Many decays are ruled out because of the protection offered by AdS geometry. In fact, within our approximations, no decays of Type 2) vacua are allowed, although some decays are only marginally forbidden. This can be understood in terms of a "pairing symmetry" in the landscape which relate Type 2) vacua with supersymmetric ones of the same energy.
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