paper

Exact black hole solutions in shift symmetric scalar-tensor theories

arXiv:1403.4364 · doi:10.1093/ptep/ptu096

Abstract

We derive a variety of exact black hole solutions in a subclass of Horndeski's scalar-tensor theory possessing shift symmetry, , and reflection symmetry, . The theory admits two arbitrary functions of , and our solutions are constructed without specifying the concrete form of the two functions, implying that black hole solutions in specific scalar-tensor theories found in the literature can be extended to a more general class of theories with shift symmetry. Our solutions include a black hole in the presence of an effective cosmological constant, the Nariai spacetime, the Lifshitz black hole, and other nontrivial solutions, all of which exhibit nonconstant scalar-field profile.

10 pages. v2: Corrected an erroneous statement in the first version. Matches version accepted by PTEP

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