We consider the role of the type-A trace anomaly in static black hole solutions to semiclassical Einstein equations in four dimensions. Via Wald’s Noether charge formalism, we compute the contribution to the entropy coming from the anomaly induced effective action and unveil a logarithmic correct...
Aros, R.
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Díaz, D.E.
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Montecinos, A.
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[Logarithmic correction to BH entropy as Noether charge]
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Logarithmic correction to BH entropy as Noether charge
We present a holographic formula relating functional determinants: the fermion determinant in the one-loop effective action of bulk spinors in an asymptotically locally AdS background, and the determinant of the two-point function of the dual operator at the conformal boundary. The formula origin...
Aros, R.
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Díaz, D. E.
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[Determinant and Weyl anomaly of Dirac operator: a holographic derivation]
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Determinant and Weyl anomaly of Dirac operator: a holographic derivation
Abstract We present a refinement of a recently found gauge–gravity relation between one-loop effective actions: on the gauge side, for a massive charged scalar in
2d dimensions in a constant maximally symmetric electromagnetic field; on the gravity side, for a massive spinor in d-dimensional (Eucli...
Aros, R.
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Díaz, D.E.
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Montecinos, A.
,
[A note on a gauge–gravity relation and functional determinants]
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A note on a gauge–gravity relation and functional determinants
We present exact solutions to Vasiliev’s bosonic higher spin gravity equations in four dimensions with positive and negative cosmological constant that admit an interpretation in terms of domain walls, quasi-instantons and Friedman-Robertson-Walker (FRW) backgrounds. Their isometry algebras are i...
Aros, R.
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Iazeolla, C.
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Noreña, J.
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Sezgin, E.
,
Sundell, P.
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Yin, Y.
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[FRW and domain walls in higher spin gravity]
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FRW and domain walls in higher spin gravity
We present a first attempt to derive the full (type-A and type-B) Weyl anomaly of four dimensional conformal higher spin (CHS) fields in a holographic way. We obtain the type-A and type-B Weyl anomaly coefficients for the whole family of 4D CHS fields from the one-loop effective action for massle...
Acevedo, S.
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Aros, R.
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Bugini, F.
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Diaz, D.E.
,
[On the Weyl anomaly of 4D conformal higher spins: a holographic approach]
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On the Weyl anomaly of 4D conformal higher spins: a holographic approach
In the context of the anti-de Sitter/Conformal Field Theory (AdS/CFT) correspondence, 4D AdS gravity is suitably renormalized by adding the Gauss Bonnet term to the Einstein-Hilbert action. The subsequent addition of the Pontryagin term, with a specific coupling, allows to write the on-shell acti...
This work was funded in part by FONDECYT Grants No. 1131075, 1140296 and 1151107, CONICYT Grant DPI 2014-0115, UNAB Grants DI-735-15/R and DI-1336-16/RG and VRIEA-PUCV Grant 039.345/2016. R.Araneda received financial support from Facultad de Física, Pontificia Universidad Católica de Chile to par...
Araneda, R.
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Aros, R.
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Miskovic, O.
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Olea, R.
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[Pontryagin Term and Magnetic Mass in 4D AdS Gravity]
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Pontryagin Term and Magnetic Mass in 4D AdS Gravity