Maxwell-scalar device based on the electric dipole

Abstract

In this work we study the electric field of a dipole immersed in a medium with permittivity controlled by a real scalar field which is non-minimally coupled to the Maxwell field. We model the system with an interesting function, which allows the presence of exact solutions, describing the possibility of the permittivity to encapsulate the charges at very high values, giving rise to an effect that is not present in the standard situation. The results are of direct interest to applications for emission and absorption of radiation, and may motivate new studies concerning binary stars and black holes in gravity scenarios of current interest.

arXiv comment5 pages, 3 figures. To appear in PRD as a Letter

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• Electrically charged multi-field configurations
• Geometrically constrained localized configurations engendering non-topological profile
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