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arXiv · hep-th/0412044

Spacetime foam in twistor string theory

Sean A. Hartnoll·Giuseppe Policastro
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Abstract

We show how a Kahler spacetime foam in four dimensional conformal (super)gravity may be mapped to twistor spaces carrying the D1 brane charge of the B model topological string theory. The spacetime foam is obtained by blowing up an arbitrary number of points in $\C^2$ and can be interpreted as a sum over gravitational instantons. Some twistor spaces for blowups of $\C^2$ are known explicitly. In these cases we write down a meromorphic volume form and suggest a relation to a holomorphic superform on a corresponding super Calabi-Yau manifold.

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Sean A. Hartnoll, Giuseppe Policastro. 2004-12-20. Spacetime foam in twistor string theory. https://arxiv.org/abs/hep-th/0412044

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