Black holes with non-minimal derivative coupling

Massimiliano Rinaldi

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Abstract

We study the gravitational field equations in the presence of a coupling between the derivative of a massless scalar field and the Einstein tensor. This configuration is motivated by Galileon gravity as it preserves shift invariance in the scalar sector. We analytically obtain solutions with static and spherically symmetric geometry, which also include black holes with a single regular horizon. We examine the thermodynamical properties of these solutions, and we reveal the non-perturbative nature of the Galileon coupling constant. We also find a phase transition, similar to the one described by Hawking and Page, which occurs at a critical temperature determined by both the black hole mass and by the strength of the coupling.
Original languageEnglish
Article number084048
Number of pages4
JournalPhysical Review D
Volume86
DOIs
Publication statusPublished - 1 Aug 2012

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