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SUMMARY:Partition function of N=(2\,2) gauge theories on S^2 and vortices 
 - Stefano Cremonesi (Imperial College\, London)
DTSTART:20121101T130000Z
DTEND:20121101T140000Z
UID:TALK41387@talks.cam.ac.uk
CONTACT:Sungjay Lee
DESCRIPTION:I will review the basics of rigid supersymmetry on curved spac
 etimes and of supersymmetric localisation and apply these methods to 2d N=
 (2\,2) supersymmetric field theories of vector and chiral multiplets with 
 a vector U(1) R-symmetry on the round 2-sphere. I will explain two differe
 nt localisation schemes\, leading to the ``Coulomb branch'' and ``Higgs br
 anch'' representations of the partition function. Finally\, I will briefly
  overview the potential of these exact results for the study of type II st
 ring compactifications\, geometry and supersymmetric gauge theories in var
 ious dimensions.
LOCATION:Potter Room (first floor\, Pav. B)
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