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Energy functionals from Conformal Gravity
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DOI：10.1007/JHEP10(2022)123.png)
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Abstract
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We provide a new derivation of the Hawking mass and Willmore energy functionals for asymptotically AdS spacetimes, by embedding Einstein-AdS gravity in Conformal Gravity. By construction, the evaluation of the four-dimensional Conformal Gravity action in a manifold with a conical defect produces a codimension-2 conformal invariant functional L-Sigma. The energy functionals are then particular cases of L-Sigma for EinsteinAdS and pure AdS ambient spaces, respectively. The bulk action is finite for AdS asymptotics and both Hawking mass and Willmore energy are finite as well. The result suggests a generic relation between conformal invariance and renormalization, where the codimension-2 properties are inherited from the bulk gravity action.
Keywords:
Classical Theories of Gravity
Gauge-Gravity Correspondence
Scale and Conformal Symmetries
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5.5
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4.0W
Citations:
13.7W
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