Consistency of field-theoretical and kinetic calculations of viscous transport coefficients for a relativistic fluid
- We investigate the ratios βη≡η/τπ and βζ≡ζ/τΠ, i.e., the ratios of shear, η, and bulk, ζ, viscosities to the relaxation times τπ, τΠ of the shear stress tensor and bulk viscous pressure, respectively, in the framework of causal relativistic dissipative fluid dynamics. These viscous transport coefficients are computed both in a field-theoretical and a kinetic approach based on the Boltzmann equation. Our results differ from those of the traditional Boltzmann calculation by Israel and Stewart. The new expressions for the viscous transport coefficients agree with the results obtained in the field-theoretical approach when the contributions from pair annihilation and creation (PAC) are neglected. The latter induce non-negligible corrections to the viscous transport coefficients.
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| Author: | Gabriel S. DenicolORCiDGND, Xu-Guang HuangORCiD, Tomoi KoideORCiD, Dirk H. RischkeORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-766425 |
| DOI: | https://doi.org/10.1016/j.physletb.2012.01.018 |
| ISSN: | 0370-2693 |
| Parent Title (English): | Physics Letters B |
| Publisher: | Elsevier |
| Place of publication: | Amsterdam |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2012/01/11 |
| Date of first Publication: | 2012/01/11 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2023/10/09 |
| Volume: | 708 |
| Issue: | 1 |
| Page Number: | 5 |
| First Page: | 174 |
| Last Page: | 178 |
| HeBIS-PPN: | 513369988 |
| Institutes: | Physik |
| Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) | |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung 3.0 |
