论文标题
非理想的自我重学和宇宙学:相关性在宇宙大规模结构的动力学中的重要性
Nonideal self-gravity and cosmology: the importance of correlations in the dynamics of the large-scale structures of the Universe
论文作者
论文摘要
受到相关性在非理想自我相互作用流体的统计力学中的作用的启发,我们建议必须在自我修复的天体物理系统的病毒定理中考虑未解决的子结构(即相关)。我们证明了它们的遗漏通过使用泳道填充方程的半分析多晶溶液导致缺失的质量问题。这个问题建议通过考虑扩展动力学中的相关性,将弗里德曼方程扩展到非理想制度。大规模结构形成引起的相关性的增加可以自然地解释这种范式中宇宙的加速扩张。
Inspired by the role of correlations in the statistical mechanics of nonideal self-interacting fluids, we suggest that unresolved sub-structures (i.e. correlations) have to be taken into account in the Virial theorem of self-gravitating astrophysical systems. We demonstrate that their omission leads to a missing mass problem by using the semi-analytic polytropic solutions of the Lane-Emden equation. This problem suggests to extend the Friedmann equations to the nonideal regime by taking into account correlations in the dynamics of the expansion. The increase of correlations induced by the formation of the large-scale structures could explain naturally the accelerated expansion of the Universe in such a paradigm.