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

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arxiv 2211.03926 v2 pith:K5S6XIMT submitted 2022-11-08 astro-ph.HE gr-qchep-th

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

classification astro-ph.HE gr-qchep-th
keywords exactfieldformulationformulationsrelativisticscalarcoupledderive
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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