Holographic renormalization of Horndeski gravity
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Fecha
2024-04-05
Profesor/a Guía
Facultad/escuela
Idioma
en
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ISSN de la revista
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Editor
Springer Science and Business Media Deutschland GmbH
Nombre de Curso
Licencia CC
CC BY 4.0 DEED
Attribution 4.0 International
Licencia CC
https://creativecommons.org/licenses/by/4.0/
Resumen
We study the renormalization of a particular sector of Horndeski theory. In particular, we focus on the nonminimal coupling of a scalar field to the Gauss-Bonnet term and its kinetic coupling to the Einstein tensor. Adopting a power expansion on the scalar function that couples the Gauss-Bonnet term, we find specific conditions on their coefficients such that the action and charges are finite. To accomplish the latter, we add a finite set of intrinsic boundary terms. The contribution of the nonminimal coupling generates an effective scalar mass, allowing us to recover a modified Breitenlohner-Freedman bound. Furthermore, we compute the holographic 1-point functions and Ward identities associated with the scalar field and the metric. We constrain the parameter space of the theory by taking into account the preservation of scaling symmetry at the boundary.
Notas
Indexación: Scopus.
Palabras clave
AdS-CFT Correspondence, Classical Theories of Gravity, Gauge-Gravity Correspondence
Citación
Journal of High Energy Physics Open Access Volume 2024, Issue 5May 2024 Article number 125
DOI
10.1007/JHEP05(2024)125