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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Solitons and black hole in shift symmetric scalar-tensor gravity with cosmological constant

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Author(s):
Brihaye, Yves [1] ; Hartmann, Betti [2] ; Urrestilla, Jon [3]
Total Authors: 3
Affiliation:
[1] Univ Mons Hainaut, Phys Math, B-7000 Mons - Belgium
[2] Univ Sao Paulo, IPSC, CP 369, BR-13560970 Sao Carlos, SP - Brazil
[3] Univ Basque Country, UPV EHU, Dept Theoret Phys, Bilbao 48080 - Spain
Total Affiliations: 3
Document type: Journal article
Source: Journal of High Energy Physics; n. 6 JUN 14 2018.
Web of Science Citations: 3
Abstract

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)

FAPESP's process: 16/12605-2 - (in)stability and excitation of modes in (asymptotically) anti-de Sitter space-times with view to the AdS/CFT correspondence
Grantee:Betti Hartmann
Support type: Regular Research Grants