Speaker
Salvatore Raucci
Description
Can low-energy gravity capture the backreaction of extended sources without the protection of supersymmetry? In this talk, I address this question in the context of non-supersymmetric string theories. Branes are expected from the worldsheet analysis, but their spacetime solutions are heavily affected by the absence of supersymmetry. A ubiquitous feature is the presence of finite-distance singularities, although all cases predicted by the worldsheet yield normalizable solutions even with singular boundaries.
