Instantons at Strong Coupling, Averaging over Vacua, and the Gluino Condensate
- Ritz, A
- Vainshtein, A I
DOIAbstract
We consider instanton contributions to chiral correlators, such as <0| Tr with either light adjoint or fundamental matter. Within the former model, extraction of the gluino condensate from a connected {\mbox 1-instanton} diagram, evaluated at strong coupling, can be contrasted with expectations from the the Seiberg-Witten solution perturbed to an N=1 vacuum. We observe a numerical discrepancy, coinciding with that observed previously in N=1 SQCD. Moreover, since knowledge of the vacuum structure is complete for softly broken N=2 Yang-Mills, this model serves as a counterexample to the hypothesis of Amati et al. that 1-instanton calculations at strong coupling can be interpreted as averaging over vacua. Within N=1 SQCD, we point out that the...
Add to ORKG