Large-scale hydrodynamic fluctuations in cosmology

W. Zimdahl

Physica A: Statistical Mechanics and its Applications, 1992, vol. 182, issue 1, 197-213

Abstract: By regarding the cosmic medium as a dissipative fluid the Landau-Lifshitz theory is applied to the hydrodynamic fluctuations on the background of a flat Friedmann cosmological model. Whereas on small scales with perturbation wavelengths less than the characteristic cosmic length scale the familiar structure of the fluctuation spectrum (the Rayleigh and Brillouin lines) in a relativistic fluid remains approximately valid, on large pertubation scales a qualitatively different type of behaviour is predicted. The ratio of the relevant mean free path to the cosmic length scale and the ratio of the cosmic length scale to the perturbation wavelength enter the expressions for the spatial spectral density of the fluctuations as additional parameters.

Date: 1992
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/037843719290238L
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:182:y:1992:i:1:p:197-213

DOI: 10.1016/0378-4371(92)90238-L

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().