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arXiv · 2211.03926

Exact formulations of relativistic electrodynamics and magnetohydrodynamics with helically coupled scalar field

Jai-chan Hwang·Hyerim Noh
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Abstract

We present the general relativistic electrodynamics and magnetohydrodynamics with a helically coupled scalar field. We consider three component system with the fluid, scalar field and electromagnetic fields with the helical coupling. We derive three exact formulations: the covariant formulation, the ADM formulation, and the fully nonlinear and exact perturbation formulation. We also derive the weak-gravity limit with fully relativistic fluid and fields. The latter two formulations are presented in the cosmological context.

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Jai-chan Hwang, Hyerim Noh. 2022-11-08. Exact formulations of relativistic electrodynamics and magnetohydrodynamics with helically coupled scalar field. https://doi.org/10.1103/physrevd.107.083020

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