Instanton Calculus With R-R Background And Topological Strings

Details Instanton Calculus With R-R Background And Topological Strings Instanton Calculus With R-R Background And Topological Strings

2007-01-09

arxiv.org/abs/hep-th/0701072v1

Fortsch.Phys.55:561-566,2007

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, 3 fig.s, Latex, uses w-art class (included). To appear in the proceedings of the RTN workshop "ForcesUniverse", Naple

Scientific paper

10.1002/prop.200610343

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 arXiv:hep-th/0606013.

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