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Stringy Instantons and Quiver Gauge Theories

Bogdan Florea·Shamit Kachru·John McGreevy·Natalia Saulina
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Abstract

We explore contributions to the 4D effective superpotential which arise from Euclidean D3 branes (``instantons'') that intersect space-filling D-branes. These effects can perturb the effective field theory on the space-filling branes by nontrivial operators composed of charged matter fields, changing the vacuum structure in a qualitative way in some examples. Our considerations are exemplified throughout by a careful study of a fractional brane configuration on a del Pezzo surface.

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Bogdan Florea, Shamit Kachru, John McGreevy, Natalia Saulina. 2009-05-23. Stringy Instantons and Quiver Gauge Theories. https://doi.org/10.1088/1126-6708%2F2007%2F05%2F024

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