Speaker
Augusto Sagnotti
(SNS - PI)
Description
I shall review how String Theory leads to an intriguing phenomenon, "brane
supersymmetry breaking", whereby supersymmetry is broken at the string
scale in D=10 with no order parameter to recover it. The phenomenon is
accompanied by the emergence of a runaway potential that destabilizes
the original Minkowski vacuum, but whose specific form affords potentially
interesting indications for the inflationary phase of the Universe.
At low energies supersymmetry appears non-linearly realized, and although we
are far from a comprehensive framing of the phenomenon, in ten dimensions or
below, four-dimensional N=1,2 models with constrained superfields can
provide useful probes into this type of dynamics.
