Quiver gauge theories from open topological string theory

by Nils Carqueville (LMU Munich)

Tuesday 13 Apr 2010, 14:00 → 15:00 Europe/Zurich

TH Theory Conference Room (CERN)

Effective quiver gauge theories arising from a stack of D3-branes on certain Calabi-Yau singularities can be studied from many points of view. In this talk we adopt a first principle approach via open topological string theory, which means that we construct the natural A-infinity-structure of open string amplitudes in the associated D-brane category. This precisely reproduces the results of the method of brane tilings, without having to resort to any effective field theory computations. In particular, one obtains a general and simple formula for effective superpotentials