Speaker
Murad Alim
(University of Hamburg)
Description
The existence, decay and formation of BPS bound-states in N=2 theories are controlled by the central charge function through the notion of Pi-stability. In this talk I will describe the variation of the central charge over the moduli space of a given theory introducing a notion of BPS variation of Hodge structure. This description leads to exact results, giving exact descriptions of the walls of marginal stability and sheds new light on the attractor flow as a tool to solve the BPS problem. This is based on joint work with Florian Beck, Anna Biggs and Daniel Bryan.
