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arXiv · 2103.09307

Spontaneous scalarization of self-gravitating magnetic fields

Yves Brihaye·Rogério Capobianco·Betti Hartmann
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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 non-minimal 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 exist. For case (a) we observe that the intervals of existence are mutually exclusive for different $k$.

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Yves Brihaye, Rogério Capobianco, Betti Hartmann. 2021-03-16. Spontaneous scalarization of self-gravitating magnetic fields. https://doi.org/10.1103/physrevd.103.124020

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