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Visco-elastic Cosmology for a Sparkling Universe?

Abstract : 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.
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Contributor : Germain Rousseaux <>
Submitted on : Monday, June 1, 2020 - 4:00:54 PM
Last modification on : Wednesday, November 4, 2020 - 7:00:07 PM

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Germain Rousseaux, S. Mancas. Visco-elastic Cosmology for a Sparkling Universe?. General Relativity and Gravitation, Springer Verlag, 2020, 52 (6), pp.55. ⟨10.1007/s10714-020-02705-y⟩. ⟨hal-02467421v2⟩

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