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
1. Verfasser: Moore, Guy D.
Format: Artikel
Sprache:eng
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Zusammenfassung: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 large.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2024)171