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Asymptotic symmetry group of the flat space string theory
  OKC/Nordita High-Energy Physics Theory seminar

Friday 14 March 2014
from 10:30 to 11:30
at 132:028
Speaker : Waldemar Schulgin (ULB, Brussels)
Abstract : I will explain how to obtain the asymptotic symmetry group of the target space from the worldsheet perspective. I will review the AdS3 case and explain what are the difficulties to take the zero limit of the cosmological constant. I will realize the asymptotic symmetry group of three-dimensional flat space (BMS3-group) in terms of vertex operators on the string worldsheet. Motivated by the BMS3 construction I will discuss vertex operators associated with space-time diffeomorphisms in flat space string theory, and compute their algebra, which is a diffeomorphism algebra with higher derivative corrections.

AlbaNova  | Last modified 10 March 2014 17:23  |  HELP