Fivebrane instantons in Calabi-Yau compactifications

Abstract

We provide the last missing piece of the complete non-perturbative description of the low energy effective action emerging from Calabi-Yau compactifications of type II string theory --- NS5-brane instanton corrections to the hypermultiplet moduli space $M_H$. We find them using S-duality symmetry of the type IIB formulation. The result is encoded in a set of holomorphic functions on the twistor space of $M_H$ and includes all orders of the instanton expansion.

5 pages

References in corpus (6)

• Nonperturbative corrections to 4D string theory effective actions from SL(2,Z) duality and supersymmetry
• D-instantons and twistors
• Quantum mirror symmetry and twistors
• Branes, Bundles and Attractors: Bogomolov and Beyond
• Large D-instanton effects in string theory
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Cited by in corpus (3)

• Dualities and fivebrane instantons
• Hypermultiplet metric and D-instantons
• Calabi-Yau compactification of type II string theories