String Theory Seminar
Friday, December 10, 1999, 2:00pm, 120 Physics
Shamit Kachru (SLAC, Stanford)
Fun with Supersymmetric Three-Cycles
Abstract:- We study the physics of D6 branes wrapped on supersymmetric three-cycles
in type IIA string theory. In particular, we argue that although the
superpotential in the resulting field theories vanishes to all orders
in \alpha', nonperturbative contributions (from disk instantons) should
generically be present. We discuss how mirror symmetry can relate these
to tree-level sigma model computations in some circumstances.
We also present an illustration of the role that background closed
string moduli play in the brane worldvolume theory.
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