RELATIVISTIC VISCOUS UNIVERSE MODELS
RELATIVISTIC VISCOUS UNIVERSE MODELS
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相对论粘性宇宙模型
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
O. Gron
中科院分区：
文献类型：
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作者：
I. Brevik;O. Gron
综述了粘性流体相对论宇宙模型的研究。粘度在早期暴胀时代可能具有重要意义，并且对于宇宙的后期演化也可能具有重要意义。体积粘度和剪切粘度导致各向异性指数衰减，而非线性粘度导致各向异性幂律衰减。我们还考虑了湍流的影响，以及与宇宙未来奇点（大撕裂和小撕裂）的联系。最后，我们回顾了因果宇宙学理论的一些最新发展。
The research on relativistic universe models with viscous fl uids is reviewed. Viscosity may have been of significance during the early inflatio nary era, and may also be of importance for the late time evolution of the Universe. Bulk viscosity and shear viscosity cause exponential decay of anisotropy, while nonlinear viscosity causes powerlaw decay of anisotropy. We consider also the influence from t urbulence, in connection with future singularities of the universe (Big Rip and Littl e Rip). Finally, we review some recent developments of causal cosmology theories.