On the topology of the hypermultiplet moduli space in type II/CY string vacua
arXiv:1009.3026 · doi:10.1103/PhysRevD.83.026001
Abstract
By analyzing qualitative aspects of NS5-brane instanton corrections, we determine the topology of the hypermultiplet moduli space M_H in Calabi-Yau compactifications of type II string theories at fixed value of the dilaton and of the Calabi-Yau metric. Specifically, we show that for fivebrane instanton couplings to be well-defined, translations along the intermediate Jacobian must induce non-trivial shifts of the Neveu-Schwarz axion which had thus far been overlooked. As a result, the Neveu-Schwarz axion parametrizes the fiber of a circle bundle, isomorphic to the one in which the fivebrane partition function is valued. In the companion paper arXiv:1010.5792, we go beyond the present analysis and take steps towards a quantitative description of fivebrane instanton corrections, using a combination of mirror symmetry, S-duality, topological string theory and twistor techniques.
5 pages, (v2) discussion about characteristics improved
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Cited by in corpus (9)
- Wall-Crossing from Boltzmann Black Hole Halos
- Coulomb and Higgs Branches from Canonical Singularities: Part 0
- Euclidean D-branes in Type IIB string theory on Calabi-Yau threefolds
- S-duality in Twistor Space
- Dualities and fivebrane instantons
- Hypermultiplet metric and D-instantons
- On quantum corrected Kähler potentials in F-theory
- Resurgence of Refined Topological Strings and Dual Partition Functions
- Calabi-Yau compactification of type II string theories