Event calendar file
TH String Theory Seminar
Superpotentials, N=1 special geometry and mirror symmetry
by Wolfgang LERCHE (CERN-TH)
Tuesday, 1 October 2002
from
to
(Europe/Zurich)
at CERN ( 60-6-002 )
at CERN ( 60-6-002 )
| Description |
I will present recent progress in computing non-perturbatively exact superpotentials of certain N=1 supersymmetric string compactifications. The efficient and systematic method relies on a non-trivial generalization of mirror symmmetry to Calabi-Yau manifolds with D-branes on top of them. The approach puts the computation of N=1 superpotentials W on a footing similar to the familiar computation of the prepotential F in N=2 theories; the main new physical ingredient is that besides the usual closed string instantons, also disk instantons from the open string sector contribute. The whole framework may be viewed as the N=1 counterpart of the well-known N=2 'special geometry'. |
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