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SUMMARY:From continuum to the lattice in conformal field theory - Ingo Run
 kel (Universität Hamburg)
DTSTART:20250916T090000Z
DTEND:20250916T103000Z
UID:TALK235948@talks.cam.ac.uk
DESCRIPTION:When studying a 2d statistical system\, one important question
  is to identify critical points and the corresponding universality class o
 f critical behaviour\, that is\, the 2d conformal field theory which descr
 ibes the statistical model at large length scales. In this talk\, I would 
 like to discuss (but not answer) the converse question: starting from a 2d
  CFT\, is there a way to construct lattice models which recover the given 
 CFT in the continuum limit? A particular focus will be topological symmetr
 ies of the CFT\, as determined by topological line defects\, and how they 
 can be preserved when passing to the lattice model. This talk is based on 
 joint work with Enrico Brehm.
LOCATION:Seminar Room 2\, Newton Institute
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