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Spontaneous scalarization of self-gravitating magnetic fields

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Author(s):
Brihaye, Yves ; Capobianco, Rogerio ; Hartmann, Betti
Total Authors: 3
Document type: Journal article
Source: PHYSICAL REVIEW D; v. 103, n. 12, p. 9-pg., 2021-06-09.
Abstract

In this paper, we study the spontaneous scalarization of an extended, self-gravitating system which is static, cylindrically symmetric and possesses electromagnetic fields. We demonstrate that a real massive scalar field condenses on this Melvin magnetic universe solution when introducing a nonminimal coupling between the scalar field and (a) the magnetic field and (b) the curvature of the space-time, respectively. We find that in both cases, the solutions exist on a finite interval of the coupling constant and that solutions with a number of nodes k in the scalar field are present. For case (a) we observe that the intervals of existence are mutually exclusive for different k. (AU)

FAPESP's process: 19/01511-5 - Black holes and solitons in generalized scalar-tensor gravity models
Grantee:Betti Hartmann
Support Opportunities: Regular Research Grants