Non-perturbative corrections in N=2 strings
arXiv:hep-th/9811096 · doi:10.1007/BFb0104254
Abstract
We investigate the non-perturbative equivalence of some heterotic/type IIA dual pairs with N=2 supersymmetry. We compute R2-like corrections, both on the type IIA and on the heterotic side. The coincidence of their perturbative part provides a test of duality. The type IIA result is then used to predict the full, non-perturbative correction to the heterotic effective action. We determine the instanton numbers and the Olive-Montonen duality groups.
7 pages, latex, no figures, talk given at the 6th Hellenic School and Workshops on Elementary Particle Physics, Corfu, Greece, 6-26 September 1998. Based on a work done with C. Kounnas and P.M. Petropoulos
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