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arXiv · 1507.02936

Towards a Worldsheet Description of N=8 Supergravity

Arthur Lipstein·Volker Schomerus
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Abstract

In this note we address the worldsheet description of 4-dimensional N=8 supergravity using ambitwistors. After gauging an appropriate current algebra, we argue that the only physical vertex operators correspond to the N=8 supermultiplet. It has previously been shown that worldsheet correlators give rise to supergravity tree level scattering amplitudes. We extend this work by proposing a definition for genus-one amplitudes that passes several consistency checks such as exhibiting modular invariance and reproducing the expected infrared behavior of 1-loop supergravity amplitudes.

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Arthur Lipstein, Volker Schomerus. 2015-07-10. Towards a Worldsheet Description of N=8 Supergravity. https://arxiv.org/abs/1507.02936

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