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hep-th2025
Causality constraints and anisotropic states
Raphael E. Hoult
We investigate the effects of anisotropy on dispersion relations and convergence in relativistic hydrodynamics. In particular, we show that for dispersion relations with a branch p…
hep-th2025
Causal Theories of Relativistic Hydrodynamics
Raphael E. Hoult
The first-order textbook formulations of relativistic viscous hydrodynamics are unstable and acausal. These shortcomings may be rectified by using effective theories which maintain…