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SUMMARY:A 4d-2d correspondence for Sicilian quivers - Hollands\, L (Caltec
 h)
DTSTART:20120113T153000Z
DTEND:20120113T163000Z
UID:TALK35365@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:In the last few years a wealth of novel properties of N=2 supe
 rsymmetric gauge theories has been uncovered. In particular\, much has bee
 n learned about the strong coupling limits of these gauge theories through
  a dual two-dimensional perspective in terms of Riemann surfaces. In this 
 talk I will discuss a quantitative check of this 4d-2d correspondence by c
 omputing the instanton partition function of an SU(2) gauge theory that is
  associated to a higher genus Riemann surface and its corresponding confor
 mal block. This exercise will reveal a better understanding of the corresp
 ondence between four-dimensional instanton partition functions and two-dim
 ensional conformal blocks.
LOCATION:Seminar Room 1\, Newton Institute
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