Triangle Seminars
Monday, 13 Dec 2004
On the relation between Liouville theory and string theory in AdS3
📍 London
Sylvain Ribault
(KCL)
Abstract:
I explain how arbitrary correlators of string theory in the
Euclidean AdS3 can be computed from the correlators of Liouville theory.
This makes use of the KZ-BPZ correspondence, which relates on the one hand
the Knizhnik-Zamolodchikov equations reflecting the group symmetry in
AdS3, on the other hand the Belavin-Polyakov-Zamolodchikov equations
reflecting the presence of degenerate fields in the Liouville correlators.
I explain how arbitrary correlators of string theory in the
Euclidean AdS3 can be computed from the correlators of Liouville theory.
This makes use of the KZ-BPZ correspondence, which relates on the one hand
the Knizhnik-Zamolodchikov equations reflecting the group symmetry in
AdS3, on the other hand the Belavin-Polyakov-Zamolodchikov equations
reflecting the presence of degenerate fields in the Liouville correlators.
Posted by: KCL
Wednesday, 15 Dec 2004
Supersymmetric string and geometries with torsion and special holonomy
📍 London
Stefan Ivanov
(University of Sofia)
Thursday, 16 Dec 2004
Heterotic String on Half-flat Manifolds
Andre Lukas
(Oxford)
Abstract:
We consider the heterotic string on certain six-dimensional half-flat manifolds which arise in the context of mirror symmetry. The four-dimensional N=1 effective theory is derived including the superpotential induced by the intrinsic torsion and NS NS flux. From the calculation of the gravitino mass term, we also obtain a general Gukov type formula valid for all heterotic compactifications
on manifolds with SU(3) structure. The results are used to study heterotic AdS4 vacua which arise from the flux superpotential combined with gaugino condensation.
We consider the heterotic string on certain six-dimensional half-flat manifolds which arise in the context of mirror symmetry. The four-dimensional N=1 effective theory is derived including the superpotential induced by the intrinsic torsion and NS NS flux. From the calculation of the gravitino mass term, we also obtain a general Gukov type formula valid for all heterotic compactifications
on manifolds with SU(3) structure. The results are used to study heterotic AdS4 vacua which arise from the flux superpotential combined with gaugino condensation.
Posted by: IC