Abstract
We reveal unifying thermodynamic aspects of so different phenomena as the cosmological electron-positron annihilation, the evaporation of primordial black holes with a narrow mass range, and the "deflationary" transition from an initial de Sitter phase to a subsequent standard Friedmann–Lemaître–Robertson–Walker (FLRW) behavior.
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Zimdahl, W., Pavón, D. Cosmological Two-Fluid Thermodynamics. General Relativity and Gravitation 33, 791–804 (2001). https://doi.org/10.1023/A:1010299622956
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DOI: https://doi.org/10.1023/A:1010299622956