Phases of 4D Scalar-tensor black holes coupled to Born-Infeld nonlinear electrodynamics

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dc.creatorStefanov, Ivan Zh.
dc.creatorYazadjiev, Stoytcho S.
dc.creatorTodorov, Michail D.
dc.date2007-08-30
dc.date2008-08-20
dc.date.accessioned2026-07-07T12:21:40Z
dc.date.available2026-07-07T12:21:40Z
dc.descriptionRecent results show that when non-linear electrodynamics is considered the no-scalar-hair theorems in the scalar-tensor theories (STT) of gravity, which are valid for the cases of neutral black holes and charged black holes in the Maxwell electrodynamics, can be circumvented. What is even more, in the present work, we find new non-unique, numerical solutions describing charged black holes coupled to non-linear electrodynamics in a special class of scalar-tensor theories. One of the phases has a trivial scalar field and coincides with the corresponding solution in General Relativity. The other four phases that we find are characterized by the value of the scalar field charge. The causal structure and some aspects of the stability of the solutions have also been studied. For the scalar-tensor theories considered, the black holes have a single, non-degenerate horizon, i.e., their causal structure resembles that of the Schwarzschild black hole. The thermodynamic analysis of the stability of the solutions indicates that a phase transition may occur.
dc.description18 pages, 8 figures, new phases, figures, clarifying remarks and acknowledgements added
dc.identifierhttps://arxiv.org/abs/0708.4141
dc.identifierhttp://arxiv.org/abs/0708.4141
dc.identifierMod.Phys.Lett.A23:2915-2931,2008
dc.identifierdoi:10.1142/S0217732308028351
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213410
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titlePhases of 4D Scalar-tensor black holes coupled to Born-Infeld nonlinear electrodynamics
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