Exact String Theory Instantons by Dimensional Reduction
C. Bachas, E. Kiritsis
Abstract
We identify exact gauge-instanton-like solutions to (super)-string theory using the method of dimensional reduction. We find in particular the Polyakov instanton of 3d QED, and a class of generalized Yang-Mills merons. We discuss their marginal deformations, and show that for the 3d instanton they correspond to a dissociation of vector- and axial-magnetic charges.
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