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SUMMARY:The Polyakov Bootstrap (UNUSUAL DATE &amp\; LOCATION) - Aninda Sin
 ha (IISC)
DTSTART:20180521T120000Z
DTEND:20180521T130000Z
UID:TALK105106@talks.cam.ac.uk
CONTACT:Dr. Carl Turner
DESCRIPTION:n 1974\, Polyakov had proposed a program to bootstrap conforma
 l field theories. For a very long time this lay essentially ignored. It tu
 rns out that in a very precise way he had anticipated Witten diagrams\, wh
 ich are the Feynman diagrams in AdS space\, as the building blocks for the
  “crossing-symmetric” bootstrap program. I will show how insights from
  AdS/CFT allow us to write down a basis in Mellin space and how to use thi
 s basis to extract multiloop Feynman diagram results for critical exponent
 s and OPE coefficients completely algebraically without encountering any i
 nfinities (and without calculating any Feynman diagrams!).
LOCATION:MR11\, B1.39
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