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Visco-elastic cosmology for a sparkling universe?
General Relativity and Gravitation ( IF 2.8 ) Pub Date : 2020-05-31 , DOI: 10.1007/s10714-020-02705-y
G. Rousseaux , S. C. Mancas

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–Lemaître 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.

中文翻译:

波光粼粼的宇宙的粘弹性宇宙学?

我们展示了气泡动力学的 Rayleigh-Plesset 方程(包括表面张力、弹性和粘度效应)与描述宇宙学中空间膨胀假设均匀和各向同性的 Friedmann-Lemaître 方程组的重新表述之间的类比。通过比较流体方程和宇宙方程,我们提出了对映射三个连续介质力学贡献的新派生宇宙方程的大胆概括。相反,在流体方程中加入一个类似宇宙常数的项也将导致一种新的现象学。
更新日期:2020-05-31
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