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Updated: Jun 13, 2025

Magnetically Induced Rotating Rayleigh-Taylor Instability
Published on: March 3, 2017
Causality Bounds on Dissipative General-Relativistic Magnetohydrodynamics
Ian Cordeiro1, Enrico Speranza1,2, Kevin Ingles1
1Illinois Center for Advanced Studies of the Universe Department of Physics, <a href="https://ror.org/047426m28">University of Illinois Urbana-Champaign</a>, Urbana, Illinois 61801, USA.
Abstract:
We derive necessary and sufficient conditions under which a large class of relativistic generalizations of Braginskii's magnetohydrodynamics with shear, bulk, and heat diffusion effects is causal and strongly hyperbolic in the fully nonlinear regime in curved spacetime. We find that causality severely constrains the size of nonideal effects and the onset of kinetic instabilities. Our results are crucial for assessing the regime of validity of fluid dynamical simulations of plasmas near supermassive black holes.
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