Local equilibration of fermions and bosons
Local kinetic equilibration is a prerequisite for hydrodynamics to be valid. Here it is described through a nonlinear diffusion equation for finite systems of fermions and bosons. The model is solved exactly for constant transport coefficients in both cases. It has the proper Fermi-Dirac and Bose-Ei...
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| Main Author: | |
|---|---|
| Format: | Article (Journal) |
| Language: | English |
| Published: |
27 March 2019
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| In: |
Results in Physics
Year: 2019, Volume: 13 |
| ISSN: | 2211-3797 |
| DOI: | 10.1016/j.rinp.2019.102197 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.rinp.2019.102197 Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S2211379719304115 
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| Author Notes: | Georg Wolschin |
MARC
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| 520 | |a Local kinetic equilibration is a prerequisite for hydrodynamics to be valid. Here it is described through a nonlinear diffusion equation for finite systems of fermions and bosons. The model is solved exactly for constant transport coefficients in both cases. It has the proper Fermi-Dirac and Bose-Einstein equilibrium limits and can replace the relaxation-time approximation (RTA). The microscopic transport coefficients are determined through the macroscopic variables temperature and local equilibration time. Applications to the transverse energy of quarks and gluons in the initial stages of central relativistic heavy-ion collisions, and to bosonic and fermionic atoms at low energies appropriate for cold quantum gases are discussed. | ||
| 650 | 4 | |a Cold quantum gases | |
| 650 | 4 | |a Kinetic equilibration | |
| 650 | 4 | |a Nonlinear models | |
| 650 | 4 | |a Relativistic heavy-ion collisions | |
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