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Towards a Worldsheet Description of N=8 Supergravity | Arthur Lipstein
; Volker Schomerus
; | Date: |
10 Jul 2015 | 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. | Source: | arXiv, 1507.2936 | Services: | Forum | Review | PDF | Favorites |
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