Viscosity-induced crossing of the phantom divide in the dark cosmic fluid
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.
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2013-12-01
|
| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fphy.2013.00027/full |
| id |
doaj-ada502dcb42541f6bd67adfbdbced495 |
|---|---|
| record_format |
Article |
| spelling |
doaj-ada502dcb42541f6bd67adfbdbced4952020-11-25T00:10:45ZengFrontiers Media S.A.Frontiers in Physics2296-424X2013-12-01110.3389/fphy.2013.0002771799Viscosity-induced crossing of the phantom divide in the dark cosmic fluidIver Hakon Brevik0Norwegian University of Science and TechnologyChoosing 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.http://journal.frontiersin.org/Journal/10.3389/fphy.2013.00027/fullcosmologysingularitydark energyViscous cosmologyBig Rip |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Iver Hakon Brevik |
| spellingShingle |
Iver Hakon Brevik Viscosity-induced crossing of the phantom divide in the dark cosmic fluid Frontiers in Physics cosmology singularity dark energy Viscous cosmology Big Rip |
| author_facet |
Iver Hakon Brevik |
| author_sort |
Iver Hakon Brevik |
| title |
Viscosity-induced crossing of the phantom divide in the dark cosmic fluid |
| title_short |
Viscosity-induced crossing of the phantom divide in the dark cosmic fluid |
| title_full |
Viscosity-induced crossing of the phantom divide in the dark cosmic fluid |
| title_fullStr |
Viscosity-induced crossing of the phantom divide in the dark cosmic fluid |
| title_full_unstemmed |
Viscosity-induced crossing of the phantom divide in the dark cosmic fluid |
| title_sort |
viscosity-induced crossing of the phantom divide in the dark cosmic fluid |
| publisher |
Frontiers Media S.A. |
| series |
Frontiers in Physics |
| issn |
2296-424X |
| publishDate |
2013-12-01 |
| description |
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. |
| topic |
cosmology singularity dark energy Viscous cosmology Big Rip |
| url |
http://journal.frontiersin.org/Journal/10.3389/fphy.2013.00027/full |
| work_keys_str_mv |
AT iverhakonbrevik viscosityinducedcrossingofthephantomdivideinthedarkcosmicfluid |
| _version_ |
1725407290588135424 |