Stability of gravitating charged-scalar solitons in a cavity

Abstract

We present new regular solutions of Einstein-charged scalar field theory in a cavity. The system is enclosed inside a reflecting mirror-like boundary, on which the scalar field vanishes. The mirror is placed at the zero of the scalar field closest to the origin, and inside this boundary our solutions are regular. We study the stability of these solitons under linear, spherically symmetric perturbations of the metric, scalar and electromagnetic fields. If the radius of the mirror is sufficiently large, we present numerical evidence for the stability of the solitons. For small mirror radius, some of the solitons are unstable. We discuss the physical interpretation of this instability.

Metadata

Item Type:	Article
Authors/Creators:	Ponglertsakul, S. Winstanley, E. https://orcid.org/0000-0001-8964-8142 Dolan, S.R.
Copyright, Publisher and Additional Information:	© 2016 American Physical Society. Reproduced in accordance with the publisher's self-archiving policy.
Keywords:	gr-qc; gr-qc; hep-th
Dates:	Published: 13 July 2016
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield)
Funding Information:	Funder Grant number SCIENCE AND TECHNOLOGY FACILITIES COUNCIL ST/L000520/1
Depositing User:	Symplectic Sheffield
Date Deposited:	28 Jul 2016 15:51
Last Modified:	28 Jul 2016 15:51
Published Version:	http://dx.doi.org/10.1103/PhysRevD.94.024031
Status:	Published
Publisher:	American Physical Society
Refereed:	Yes
Identification Number:	10.1103/PhysRevD.94.024031
Related URLs:	Author
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:102865

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Stability of gravitating charged-scalar solitons in a cavity

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