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Hydrodynamics as vs → c
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DOI：10.1007/JHEP06(2024)171.png)
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Abstract
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I present the simplest 3+1 dimensional quantum field theory for which the speed of sound can be arbitrarily close to the speed of light. Examining the hydrodynamics, I find cases where the shear viscosity is finite, but the shear relaxation coefficient appears always to be divergently large.
Keywords:
Thermal Field Theory
Field Theory Hydrodynamics
Non-Equilibrium Field Theory
Journal
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5.5
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3.9W
Citations:
13.7W