Visco-elastic Cosmology for a Sparkling Universe?

Autor: Rousseaux, Germain, Mancas, Stefan C.
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