Viscosity-induced crossing of the phantom divide in the dark cosmic fluid

Frontiers in Physics

Brevik, Iver Hakon¹ 

[1] Norwegian University of Science and Technology, Energy and Process Engineering, Kolbj. Hejesv. 2, Trondheim, N-7491, Norway

关键词: Viscous cosmology;    Big Rip;    dark energy;    cosmology;    singularity;   

DOI  :  10.3389/fphy.2013.00027

学科分类：物理（综合）

来源: Frontiers

【 摘 要 】

Choosing various natural forms for the equation-of-state parameter $w$ and the bulk viscosity $\zeta$, we discuss how it is possible for a dark energy fluid to slide from the quintessence region across the divide $w=-1$ into the phantom region, and thus into a Big Rip future singularity.

【 授权许可】

CC BY