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SUMMARY:Duality Symmetric Strings and Background Fields - Daniel Thompson 
 (Queen Mary)
DTSTART:20071130T130000Z
DTEND:20071130T140000Z
UID:TALK8200@talks.cam.ac.uk
CONTACT:David Seery
DESCRIPTION:I shall present an overview of T-duality symmetric formalisms 
 in which the dimension of target space is doubled and the sigma model supp
 lemented with constraints.  In particular I shall describe the equations t
 hat the background fields must satisfy.   These are calculated by demandin
 g the vanishing of the beta-functionals of the sigma model couplings in th
 e doubled target space.  I will demonstrate that the Weyl divergences for 
 the duality symmetric string are equivalent to those of the standard sigma
  model and that the full beta-functionals are naturally interpreted as the
  field equations for a dimensionally reduced and O(d\,d) invariant space t
 ime action.
LOCATION:Pavilion B Potter Room (B1.19)
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