Autor(es)

Brihaye, Yves ; Hartmann, Betti ; Urrestilla, Jon

• Tipo de documento: Artigo Científico
• Fonte: Journal of High Energy Physics; v. N/A, n. 6, p. 15-pg., 2018-06-14.

Resumo

We demonstrate the existence of static, spherically symmetric globally regular, i.e. solitonic solutions of a shift-symmetric scalar-tensor gravity model with negative cosmological constant. The norm of the Noether current associated to the shift symmetry is finite in the full space-time. We also discuss the corresponding black hole solutions and demonstrate that the interplay between the scalar-tensor coupling and the cosmological constant leads to the existence of new branches of solutions. To linear order in the scalar-tensor coupling, the asymptotic space-time corresponds to an Anti-de Sitter space-time with a non-trivial scalar field on its conformal boundary. This allows the interpretation of our solutions in the context of the AdS/CFT correspondence. Finally, we demonstrate that-for physically relevant, small values of the scalar-tensor coupling-solutions with positive cosmological constant do not exist in our model. (AU)

• Processo FAPESP: 16/12605-2 - Instabilidade/Estabilidade e excitação de modos nos espaços-tempos (assintoticamente) Anti-de Sitter com vista a correspondência AdS/CFT
• Beneficiário: Betti Hartmann
• Modalidade de apoio: Auxílio à Pesquisa - Regular