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Spontaneous scalarization of self-gravitating magnetic fields

Brihaye, Y; Capobianco, R; Hartmann, B; (2021) Spontaneous scalarization of self-gravitating magnetic fields. Physical Review D , 103 (12) , Article 124020. 10.1103/PhysRevD.103.124020. Green open access

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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 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.

Type: Article
Title: Spontaneous scalarization of self-gravitating magnetic fields
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevD.103.124020
Publisher version: http://dx.doi.org/10.1103/PhysRevD.103.124020
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics
URI: https://discovery.ucl.ac.uk/id/eprint/10130097
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