D-instantons and matter hypermultiplet

Abstract

We calculate the D-instanton corrections (with all D-instanton numbers) to the quantum moduli space metric of a single matter hypermultiplet with toric isometry, in the effective N=2 supergravity arising in type-IIA superstrings compactified on a Calabi-Yau (CY) threefold of Hodge number h_{2,1}=1. The non-perturbative quaternionic hypermultiplet metric is derived by resolution of a complex orbifold singularity, thus generalizing the known (Ooguri-Vafa) solution in flat spacetime to N=2 supergravity.

8 pages, LaTeX, no figures

References in corpus (1)

• Summing up D-instantons in N=2 supergravity

Cited by in corpus (6)

• Quantum Corrections to the Universal Hypermultiplet and Superspace
• A Stringy Test of Flux-Induced Isometry Gauging
• Fivebrane Instanton Corrections to the Universal Hypermultiplet
• Quaternionic Kahler Manifolds, Constrained Instantons and the Magic Square: I
• Toric hyperkahler manifolds with quaternionic Kahler bases and supergravity solutions
• D-instanton sums for matter hypermultiplets