Hydrodynamics as vs → c
A bstract 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 la...
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Veröffentlicht in: | The journal of high energy physics 2024-06, Vol.2024 (6), p.171, Article 171 |
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Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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bstract
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. |
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ISSN: | 1029-8479 1029-8479 |
DOI: | 10.1007/JHEP06(2024)171 |