Aspects of Supersymmetry Breaking in String Theory
Tuesday 25 September 2018
to 14:15 at
Augusto Sagnotti (Scuola Normale Superiore, Pisa)
Supersymmetry breaking is perhaps the key question in String Theory today. Supersymmetry underlies the pervasive 10D-11D M-theory picture, while its breaking clearly impinges on the link with the Fundamental Interactions. While some pervasive mechanisms have surfaced over the years, they all appear fraught with difficulties and puzzles. Supersymmetry breaking affects vacuum stability in an important fashion, and in doing so it touches the ill-understood foundations of the overall picture. Its impact is particularly severe in highly symmetric static backgrounds, while its applications to Cosmology seem to lie on comparatively safer ground. I shall illustrate these facts, together with some potentially instructive implications for the Early Universe that seem linked to current CMB observations.