Monopole and dyon bound states in N = 2 supersymmetric Yang-Mills theories
We study the existence of monopole bound states saturating the BPS bound in N = 2 supersymmetric Yang-Mills theories. We describe how the existence of such bound states relates to the topology of index bundles over the moduli space of BPS solutions. Using an L2 index theorem, we prove the existence of certain BPS states predicted by Seiberg and Witten based on their study of the vacuum structure of N = 2 Yang-Mills theories. © 1995.
Sethi, S; Stern, M; Zaslow, E
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