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Supergravity description of spacetime instantons

Mathijs de Vroome·Stefan Vandoren
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Abstract

We present and discuss BPS instanton solutions that appear in type II string theory compactifications on Calabi-Yau threefolds. From an effective action point of view these arise as finite action solutions of the Euclidean equations of motion in four-dimensional N=2 supergravity coupled to tensor multiplets. As a solution generating technique we make use of the c-map, which produces instanton solutions from either Euclidean black holes or from Taub-NUT like geometries.

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Mathijs de Vroome, Stefan Vandoren. 2006-09-05. Supergravity description of spacetime instantons. https://doi.org/10.1088/0264-9381%2F24%2F3%2F001

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