## Abstract

In these lectures we review how symmetries of gravitational theories may be regarded as originating from those of 'Yang-Mills squared'. We begin by motivating the idea that certain aspects of gravitational theories can be captured by the product, in some sense, of two distinct Yang-Mills theories, particularly in the context of scattering amplitudes. We then introduce a concrete dictionary for the covariant fields of (super)gravity in terms of the product of two (super) Yang-Mills theories. The dictionary implies that the symmetries of each (super) Yang-Mills factor generate the symmetries of the corresponding (super)gravity theory: general covariance, p-form gauge invariance, local Lorentz invariance, local supersymmetry, R-symmetry and U-duality.

Original language | English |
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Article number | 108012 |

Journal | Physica Scripta |

Volume | 90 |

Issue number | 10 |

DOIs | |

Publication status | Published - 28 Sept 2015 |

## Keywords

- gauge theory
- gravity
- supersymmetry
- symmetry