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Fivebrane instanton...
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Persson, Daniel,1978Chalmers tekniska högskola,Chalmers University of Technology
(author)
Fivebrane instantons, topological wave functions and hypermultiplet moduli spaces
- Article/chapterEnglish2011
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2011
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electronicrdacarrier
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LIBRIS-ID:oai:research.chalmers.se:03ae753d-bad0-49ca-9a2b-954d139c3576
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https://doi.org/10.1007/JHEP03(2011)111DOI
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https://research.chalmers.se/publication/154349URI
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Language:English
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Summary in:English
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We investigate quantum corrections to the hypermultiplet moduli space M in Calabi-Yau compactifications of type II string theories, with particular emphasis on instanton effects from Euclidean NS5-branes. Based on the consistency of D- and NS5-instanton corrections, we determine the topology of the hypermultiplet moduli space at fixed string coupling, as previewed in arXiv:1009.3026. On the type IIB side, we compute corrections from (p,k)-fivebrane instantons to the metric on M (specifically, the correction to the complex contact structure on its twistor space Z) by applying S-duality to the D-instanton sum. For fixed fivebrane charge k, the corrections can be written as a non-Gaussian theta series, whose summand for k=1 reduces to the topological A-model amplitude. By mirror symmetry, instanton corrections induced from the chiral type IIA NS5-brane are similarly governed by the wave function of the topological B-model. In the course of this investigation we clarify charge quantization for coherent sheaves and find hitherto unnoticed corrections to the Heisenberg, monodromy and S-duality actions on M, as well as to the mirror map for Ramond-Ramond fields and D-brane charges.
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Pioline, Boris
(author)
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Alexandrov, Sergei
(author)
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Chalmers tekniska högskola
(creator_code:org_t)
Related titles
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In:Journal of High Energy Physics1103, s. 111-1029-84791126-6708
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