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Possible Link between the Distribution of Atomic Spectral Lines and the Radiation-Matter-Equilibrium in the Early Universe

: Richardt, T.; Heinrich, M.; Gräfe, M.; Szameit, A.

Fulltext ()

Annalen der Physik 532 (2020), No.6, Art. 2000033, 5 pp.
ISSN: 0003-3804
ISSN: 1521-3889
Journal Article, Electronic Publication
Fraunhofer IOF ()
black-body radiation; early universe; radiation–matter equilibrium

The uncanny resemblance of the global distribution of all experimentally known atomic spectral lines to the Planckian spectral distribution associated with black body radiation at a temperature of 𝑇≈9000K is reported. This value coincides with the critical temperature of equilibrium between the respective densities of radiation and matter in the early universe.