Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-01-14
Gen.Rel.Grav. 36 (2004) 1423-1432
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
9 pages, 2 figures, to be published in General Relativity and Gravitation
Scientific paper
10.1023/B:GERG.0000022578.70873.
The evolution of a Universe confined onto a 3-brane embedded in a five-dimensional space-time is investigated where the cosmological fluid on the brane is modeled by the van der Waals equation of state. It is shown that the Universe on the brane evolves in such a manner that three distinct periods concerning its acceleration field are attained: (a) an initial accelerated epoch where the van der Waals fluid behaves like a scalar field with a negative pressure; (b) a past decelerated period which has two contributions, one of them is related to the van der Waals fluid which behaves like a matter field with a positive pressure, whereas the other contribution comes from a term of the Friedmann equation on the brane which is inversely proportional to the scale factor to the fourth power and can be interpreted as a radiation field, and (c) a present accelerated phase due to a cosmological constant on the brane.
No associations
LandOfFree
Brane cosmology with a van der Waals equation of state does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Brane cosmology with a van der Waals equation of state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brane cosmology with a van der Waals equation of state will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-634153