Exploring the fluid landscape: three new regimes of relativistic hydrodynamics
Date
2017-08-22
Authors
Hernandez, Juan
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Abstract
In this work, we use the recently developed equilibrium generating functional and systematic derivative expansion approach to hydrodynamics to explore three new regimes of relativistic hydrodynamics. First, we derive the equations of motion and write the constitutive relations to first order in derivatives for relativistic fluids coupled to an external vector field. Next, for relativistic fluids in strong magnetic fields B ~ O(1), we derive the equations of motion and present the constitutive relations to first order in derivatives. From the resulting system of equations, we find the hydrodynamic modes for these systems. We also find the constraints on the transport coefficients due to the entropy production argument and derive the corresponding Kubo formulas. Finally, we repeat the same analysis for relativistic fluids coupled to dynamical electromagnetic fields with <B> ~ O(1).
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Keywords
relativity, hydrodynamics, magnetohydrodynamics, thermodynamics, transport, effective field theory