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arXiv · hep-th/9810042

Octonionic Gravitational Instantons

I. Bakas·E. Floratos·A. Kehagias
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Abstract

We construct eight-dimensional gravitational instantons by solving appropriate self-duality equations for the spin-connection. The particular gravitational instanton we present has $Spin(7)$ holonomy and, in a sense, it is the eight-dimensional analog of the Eguchi-Hanson 4D space. It has a removable bolt singularity which is topologically S^4 and its boundary at infinity is the squashed S^7. We also lift our solutions to ten and eleven dimensions and construct fundamental string and membrane configurations that preserve 1/16 of the original supersymmetries.

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I. Bakas, E. Floratos, A. Kehagias. 1998-10-20. Octonionic Gravitational Instantons. https://doi.org/10.1016/s0370-2693(98)01411-7

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