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. (C) 2000 Elsevier Science B.V. All rights reserved.
Multi - instantons, supersymmetry and topological field theories / Bellisai, D.; Fucito, F.; Tanzini, A.; Travaglini, G.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 480:3-4(2000), pp. 365-372. [10.1016/S0370-2693(00)00396-8]
Multi - instantons, supersymmetry and topological field theories
Tanzini, A.;
2000-01-01
Abstract
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. (C) 2000 Elsevier Science B.V. All rights reserved.File | Dimensione | Formato | |
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