Boundary Terms Unbound! Holographic Renormalization of Asymptotically Linear Dilaton Gravity - High Energy Physics - TheoryReportar como inadecuado




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Abstract: A variational principle is constructed for gravity coupled to anasymptotically linear dilaton and a p-form field strength. This requires theintroduction of appropriate surface terms - also known as `boundarycounterterms- in the action. The variation of the action with respect to theboundary metric yields a boundary stress tensor, which is used to constructconserved charges that generate the asymptotic symmetries of the theory. Inmost cases a minimal set of assumptions leads to a unique set of counterterms.However, for certain examples we find families of actions that depend on one ormore continuous parameters. We show that the conserved charges and the value ofthe on-shell action are always independent of these parameters.



Autor: Robert B. Mann, Robert McNees

Fuente: https://arxiv.org/







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