论文标题
宇宙无毛定理用于粘性承包宇宙
Cosmic no-hair theorems for viscous contracting Universes
论文作者
论文摘要
得出了所有最初收缩，空间均匀的正交比安奇宇宙学的宇宙无头发定理 - 这表明所有这些宇宙渐近，同位素宇宙均具有剪切粘性。这建立了一种在合同宇宙中的各向同性化机制，该机制不使用有效的状态流体的超模型方程来求助于类似于埃克比的机制，即压力大得多的能量密度要大得多。
A cosmic no-hair theorem for all initially contracting, spatially homogeneous, orthogonal Bianchi Cosmologies is derived - which shows that all such Universes asymptote to a spatially flat, isotropic Universe with the inclusion of a shear viscous stress. This establishes a new mechanism of isotropisation in a contracting Universe, which does not take recourse to an ekpyrosis-like mechanism using an effective ultra-stiff equation of state fluid, that is, one in which the pressure is much greater than the energy density.
