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Instanton calculus with R-R background and topological strings

✍ Scribed by M. Billó

Book ID
105357593
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
143 KB
Volume
55
Category
Article
ISSN
0015-8208

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✦ Synopsis

Abstract

The non‐perturbative low energy effective action of N = 2 SYM is studied within a microscopic string realization via D3/D‐instanton systems. The localization deformation of instanton moduli space which has allowed the exact computation of multi‐instanton contributions is, in this setting, due to a RR graviphoton background. The relation of deformed instanton contributions to topological string amplitudes on CY, argued by Nekrasov, appears quite natural in this framework. Based on Billo, et al., J. High Energy Phys. 0611, 012 (2006) [arXiv:hep‐th/0606013].

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