Visco-elastic Cosmology for a Sparkling Universe?
Autor: | Rousseaux, Germain, Mancas, Stefan C. |
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Rok vydání: | 2020 |
Předmět: | |
Zdroj: | Gen Relativ Gravit 52, 55 (2020) |
Druh dokumentu: | Working Paper |
DOI: | 10.1007/s10714-020-02705-y |
Popis: | We show the analogy between a generalization of the Rayleigh-Plesset equation of bubble dynamics including surface tension, elasticity and viscosity effects with a reformulation of the Friedmann-Lema\^itre set of equations describing the expansion of space in cosmology assuming a homogeneous and isotropic universe. By comparing both fluid and cosmic equations, we propose a bold generalization of the newly-derived cosmic equation mapping three continuum mechanics contributions. Conversely, the addition of a cosmological constant-like term in the fluid equation would lead also to a new phenomenology. Comment: 5 pages |
Databáze: | arXiv |
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