Multi-Instantons, Supersymmetry and Topological Field Theories

Details Multi-Instantons, Supersymmetry and Topological Field Theories Multi-Instantons, Supersymmetry and Topological Field Theories

2000-02-14

arxiv.org/abs/hep-th/0002110v1

Phys.Lett. B480 (2000) 365-372

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, latex2e

Scientific paper

10.1016/S0370-2693(00)00396-8

In this letter we argue that instanton-dominated Green's functions in N=2 Super Yang-Mills theories can be equivalently computed either using the so-called constrained instanton method or making reference to the topological twisted version of the theory. Defining an appropriate BRST operator (as a supersymmetry plus a gauge variation), we also show that the expansion coefficients of the Seiberg-Witten effective action for the low-energy degrees of freedom can be written as integrals of total derivatives over the moduli space of self-dual gauge connections.

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