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SUMMARY:Emergent symmetries in large N gauge theories - Aleksey Cherman (M
 innesota)
DTSTART:20150611T120000Z
DTEND:20150611T130000Z
UID:TALK59327@talks.cam.ac.uk
CONTACT:Godazgar
DESCRIPTION:The large N limit of confining gauge theories is a free limit 
 in terms of the physical degrees of freedom\, glueballs and mesons.  This 
 has many powerful implications\, some of which are still being uncovered. 
 I will review the tension between two famous properties of large N confini
 ng theories\, volume independence and Hagedorn spectra. In non-supersymmet
 ric adjoint QCD\, this tension is especially severe\, and I will explain t
 he accumulating evidence that it is resolved in a striking way: the theory
  develops an emergent fermionic symmetry in the large N limit.  Trying to 
 understand where such symmetries may come from has lead us to uncover rela
 tions between the spectra of large N confining theories and certain 2D CFT
 s\, as well interesting spectral sum rules constraining the N=\\infty vacu
 um energy.
LOCATION:MR9\, Pav. B
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