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Department of Mathematical Sciences

Seminar Archives

On this page you can find information about seminars in this and previous academic years, where available on the database.

Maths HEP Lunchtime Seminars: Twisted N=4 SYM and topological CFT

Presented by "Bill Spence (Queen Mary, University of London)",

16 November 2001 13:00 in CM221

"The diagonally twisted flat space Euclidean N=4 super Yang-Mills theory is shown to be a conformal field theory with nilpotent conformally invariant BRST operators. It is described how this arises from a diagonal twisting of the conformal group of the theory with the R-symmetry group. With the addition of suitable non-minimal terms, one can define the model in curved space in such a way as to preserve the conformal BRST symmetries and local Weyl invariance together with the topological structure. The result is a topological conformal field theory in four dimensions. This may be related to topological holography in four dimensions"

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