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SUMMARY:Conformal bootstrap—a new way to compute in quantum field theory
  - Slava Rychkov (CERN)
DTSTART:20141203T141500Z
DTEND:20141203T151500Z
UID:TALK55802@talks.cam.ac.uk
CONTACT:Mahdi Godazgar
DESCRIPTION:Most takes on quantum field theory start from microscopics\, f
 undamental degrees of freedom\, a Lagrangian. Conformal field theory is an
  exception—it focuses on the algebra of local operators and avoids any r
 eference to the Lagrangian. This leads to a method for doing practical CFT
  calculations—the conformal bootstrap. The method is 40 years old\, thou
 gh it seemed limited to D=1+1 dimensions where the conformal group is infi
 nite. Recent work shows how to set it up for any D. Applications are rapid
 ly expanding\, and the method will become a standard QFT tool next to the 
 RG\, the epsilon-expansion\, and the 1/N expansion. We will highlight the 
 world-record determination of the 3D Ising critical exponents obtained by 
 the conformal bootstrap.\n
LOCATION:MR2\, Centre for Mathematical Sciences
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