BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:New Skins for an Old Ceremony: The Conformal Bootstrap and the Isi
 ng Model - Sheer El-Showk (Saclay) 
DTSTART:20121108T130000Z
DTEND:20121108T140000Z
UID:TALK41459@talks.cam.ac.uk
CONTACT:Sungjay Lee
DESCRIPTION:The existence of a positive linear functional acting on the sp
 ace of (differences between) conformal blocks has been shown to rule out r
 egions in the parameter space of conformal field theories (CFTs). We argue
  that at the boundary of the allowed region the extremal functional contai
 ns\, in principle\, enough information to determine the dimensions and OPE
  coefficients of an infinite number of operators appearing in the correlat
 or under analysis. Based on this idea we develop the Extremal Functional M
 ethod (EFM)\, a numerical procedure for deriving the spectrum and OPE coef
 ficients of CFTs lying on the boundary (of solution space). We test the EF
 M by using it to rederive the low lying spectrum and OPE coefficients of t
 he 2d Ising model based solely on the dimension of a single scalar quasi-p
 rimary ? no Virasoro algebra required. Our work serves as a benchmark for 
 applications to more interesting\, less known CFTs (such as the 3d Ising m
 odel) in the near future.
LOCATION:Potter Room (first floor\, Pav. B)
END:VEVENT
END:VCALENDAR