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arXiv · hep-th/0005068

Supergravity Instantons and the Universal Hypermultiplet

Michael Gutperle·Michal Spalinski
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Abstract

The effective action of N=2 supersymmetric 5-dimensional supergravity arising from compactifications of M-theory on Calabi-Yau threefolds receives non-perturbative corrections from wrapped Euclidean membranes and fivebranes. These contributions can be interpreted as instanton corrections in the 5 dimensional field theory. Focusing on the universal hypermultiplet, a solution of this type is presented and the instanton action is calculated, generalizing previous results involving membrane instantons. The instanton action is not a sum of membrane and fivebrane contributions: it has the form reminiscent of non-threshold bound states.

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Michael Gutperle, Michal Spalinski. 2000-07-03. Supergravity Instantons and the Universal Hypermultiplet. https://doi.org/10.1088/1126-6708%2F2000%2F06%2F037

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