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Local thermodynamical equilibrium and the $$\beta $$ frame for a quantum relativistic fluid.
- Source :
-
European Physical Journal C -- Particles & Fields . May2015, Vol. 75 Issue 5, p1-17. 17p. - Publication Year :
- 2015
-
Abstract
- We discuss the concept of local thermodynamical equilibrium in relativistic hydrodynamics in flat spacetime in a quantum statistical framework without an underlying kinetic description, suitable for strongly interacting fluids. We show that the appropriate definition of local equilibrium naturally leads to the introduction of a relativistic hydrodynamical frame in which the four-velocity vector is the one of a relativistic thermometer at equilibrium with the fluid, parallel to the inverse temperature four-vector $$\beta $$ , which then becomes a primary quantity. We show that this frame is the most appropriate for the expansion of the stress-energy tensor from local thermodynamical equilibrium and that therein the local laws of thermodynamics take on their simplest form. We discuss the difference between the $$\beta $$ frame and Landau frame and present an instance where they differ. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14346044
- Volume :
- 75
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- European Physical Journal C -- Particles & Fields
- Publication Type :
- Academic Journal
- Accession number :
- 102440352
- Full Text :
- https://doi.org/10.1140/epjc/s10052-015-3384-y