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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Wall-crossing and hyperkahler geometry
Speaker(s): Andy Neitzke
Abstract: I will give an overview of recent work with Davide Gaiotto and Greg Moore. This work relates the phenomenon of ''wall-crossing'' for BPS states in four-dimensional N=2 theories to a new construction of hyperkahler metrics. These metrics include in particular the metrics on moduli spaces of solutions to Hitchin equations. I will also briefly describe some extensions of this work to incorporate line and surface operators in the N=2 theory (in progress).
Date: 09/05/2010 - 8:30 am
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