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Article Dans Une Revue Journal of High Energy Physics Année : 2014

Dualities and fivebrane instantons

Sergey Alexandrov
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Sibasish Banerjee
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Résumé

We derive the fivebrane instanton corrections to the hypermultiplet moduli space $M_H$ of Calabi-Yau string vacua using S-duality symmetry of the type IIB formulation. The result is given in terms of a set of holomorphic functions on the twistor space of $M_H$. It contains not only all orders of the instanton expansion, but also takes into account the presence of D1-D(-1)-brane instantons. Furthermore, we provide a thorough study of the group of discrete isometries of $M_H$ and show that its closure requires a modification of certain symmetry transformations. After this modification, the fivebrane instantons are proven to be consistent with the full duality group.
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hal-00992829 , version 1 (07-06-2021)

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Sergey Alexandrov, Sibasish Banerjee. Dualities and fivebrane instantons. Journal of High Energy Physics, 2014, 2014 (11), pp.040. ⟨10.1007/jhep11(2014)040⟩. ⟨hal-00992829⟩
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