http://arxiv.org/abs/1908.08876
The cosmic background radiation has been observed to deviate from the Planck law expected from a blackbody at $\sim$2.7 K at frequencies below $\sim$3 GHz. We discuss the abundance of the low-energy photons from the perspective of nonequilibrium statistical mechanics by specifying an evolution to a frequency distribution fitting the observed discrepancies. We mention possible physical mechanisms that enter the derivation of that dynamics, where a low-frequency localization is combined with photon cooling as result of e.g. induced Compton scattering. In that sense, the so called ‘space roar’ we observe today is interpreted as a nonequilibrium echo of the early universe.
M. Baiesi, C. Burigana, L. Conti, et. al.
Mon, 26 Aug 19
6/55
Comments: 27 pages, 2 figures, 1 table
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