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SUMMARY:F-theory on singular spaces - Raffaele Savelli\, IPhT Saclay
DTSTART:20150305T130000Z
DTEND:20150305T140000Z
UID:TALK58288@talks.cam.ac.uk
CONTACT:Joao Miguel Vieira Gomes
DESCRIPTION:F-theory is a strong coupling formulation of Type IIB string t
 heory which unifies gravitational and gauge theory data of 7-branes in the
  geometry of elliptic fibrations. In all situations of interest such fibra
 tions are singular spaces\, and\, in order to describe the low-energy phys
 ics\, one typically removes the singularities either via resolutions or de
 formations. In this talk\, I will propose a framework which instead allows
  us to deal with the singular spaces directly. I will show how\, besides c
 orrectly reproducing known results\, this treatment enables us to explore 
 branches of the string moduli space which are invisible to the smooth phas
 e. The method is based on the so called "matrix factorizations of hypersur
 face singularities"\, and I will discuss it at work in a number of example
 s\, including a class of globally defined\, four-dimensional models.\nThe 
 talk is based on arXiv:1410.4178 and arXiv:1410.4867.
LOCATION:Potter Room (first floor\, Pav. B)
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