A relation between diffusion,temperature and the cosmological constant
General Relativity and Quantum Cosmology
2016-07-20 v2 High Energy Physics - Theory
Mathematical Physics
math.MP
Abstract
We show that the temperature of a diffusing fluid with the diffusion constant \kappa^{2} in an expanding universe approaches a constant limit T=\kappa^{2}/H in its final de Sitter stage characterized by the horizon 1/H determined by the Hubble constant. If de Sitter surface temperature in the final equilibrium state coincides with the fluid temperature then the cosmological constant \Lambda=3H^{2}=6\pi\kappa^{2}.
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Cite
@article{arxiv.1604.00251,
title = {A relation between diffusion,temperature and the cosmological constant},
author = {Z. Haba},
journal= {arXiv preprint arXiv:1604.00251},
year = {2016}
}
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9 pages