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arXiv · 2405.01335

Nontopological Electromagnetic Hedgehogs

Yulia Galushkina·Emin Nugaev·Andrey Shkerin
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Abstract

We study classical localised configurations - solitons - in a theory of self-interacting complex Proca field with the global $U(1)$ symmetry. We focus on spherically-symmetric solitons near the nonrelativistic limit, which are supported by the quartic interactions of the neutral Proca field. Such solitons can source the radial electric (magnetic) field if one introduces a parity-even (parity-odd) coupling of the Proca field to the electromagnetic field tensor. We discuss the conditions of existence of such nontopological ''electromagnetic hedgehogs'' and their properties.

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Yulia Galushkina, Emin Nugaev, Andrey Shkerin. 2024-05-02. Nontopological Electromagnetic Hedgehogs. https://doi.org/10.1103/vkv4-b3wj

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