| Domaine : |
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Physique/Physique des Hautes Energies - Théorie
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| Titre : |
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On the topology of the hypermultiplet moduli space in type II/CY string vacua |
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| Auteur(s) : |
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Sergei Alexandrov1, Daniel Persson, Boris Pioline2 |
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| Laboratoire : |
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| Résumé : |
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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 a companion paper [1], 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. |
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Langue du texte
intégral : |
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Anglais |
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Date de production,
écriture : |
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15/09/2010 |
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| Journal : |
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| Physical Review D (Phys. Rev. D) |
| Publisher |
American Physical Society |
| ISSN |
1550-7998 (eISSN : 1550-2368) |
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| Audience : |
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internationale |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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| Date de publication : |
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05/01/2011 |
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| Volume : |
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83 |
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| Page, identifiant, ... : |
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026001 |
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| Commentaire : |
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5 pages |
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