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Quiver gauge theories from open topological string theory

Nils Carqueville (ASC)

21.01.2010 at 16:15 

Effective quiver gauge theories arising from a stack of D3-branes on 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.

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