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

Frontiers in Physics

Iver Hakon Brevik¹ 

[1] Norwegian University of Science and Technology;

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

DOI  :  10.3389/fphy.2013.00027

来源: DOAJ

【 摘 要 】

Choosing various naturalforms 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】

Unknown