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World sheet instantons via the Myers effect and N = 1* quiver superpotentials / Timothy Hollowood; Prem Kumar

Journal of High Energy Physics, Volume: 2002, Issue: 10, Pages: 077 - 077

Swansea University Authors: Timothy, Hollowood, Prem, Kumar

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DOI (Published version): 10.1088/1126-6708/2002/10/077

Abstract

In this note we explore the stringy interpretation of non-perturbative ef- fects in N = 1∗ deformations of the Ak−1 quiver models. For certain types of deforma- tions we argue that the massive vacua are described by Nk fractional D3-branes at the orbifold polarizing into k concentric 5-brane spheres...

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Published in: Journal of High Energy Physics
Published: 2002
URI: https://cronfa.swan.ac.uk/Record/cronfa16142
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Abstract: In this note we explore the stringy interpretation of non-perturbative ef- fects in N = 1∗ deformations of the Ak−1 quiver models. For certain types of deforma- tions we argue that the massive vacua are described by Nk fractional D3-branes at the orbifold polarizing into k concentric 5-brane spheres each carrying fractional brane charge. The polarization of the D3-branes induces a polarization of D-instantons into string world-sheets wrapped on the Myers spheres. We show that the superpotentials in these models are indeed generated by these world-sheet instantons. We point out that for certain parameter values the condensates yield the exact superpotential for a relevant deformation of the Klebanov-Witten conifold theory.
College: College of Science
Issue: 10
Start Page: 077
End Page: 077