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Título

Non-perturbative effects and wall-crossing from topological strings

AutorCollinucci, Andrés; Soler, Pablo ; Uranga Urteaga, Ángel M.
Palabras claveNonperturbative effects
Topological strings
D-branes
Superstring vacua
Fecha de publicaciónnov-2009
EditorInstitute of Physics Publishing
CitaciónJournal of High Energy Physics 11(025): (2009)
ResumenWe argue that the Gopakumar-Vafa interpretation of the topological string partition function can be used to compute and resum certain non-perturbative brane instanton effects of type II CY compactifications. In particular the topological string A-model encodes the non-perturbative corrections to the hypermultiplet moduli space metric from general D1/D(-1)-brane instantons in 4d = 2 IIB models. We also discuss the reduction to 4d = 1 by fluxes and/or orientifolds and/or D-branes, and the prospects to resum brane instanton contributions to non-perturbative superpotentials. We argue that the connection between non-perturbative effects and the topological string underlies the continuity of non-perturbative effects across lines of BPS stability. We also confirm this statement in mirror B-model matrix model examples, relating matrix model instantons to non-perturbative D-brane instantons. The computation of non-perturbative effects from the topological string requires a 3d circle compactification and T-duality, relating effects from particles and instantons, reminiscent of that involved in the physical derivation of the Kontsevich-Soibelmann wall-crossing formula.
Descripción37 pages, 5 figures.
Versión del editorhttp://dx.doi.org/10.1088/1126-6708/2009/11/025
URIhttp://hdl.handle.net/10261/20280
DOI10.1088/1126-6708/2009/11/025
ISSN1126-6708
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