Friedmann branes with variable tension

Details Friedmann branes with variable tension Friedmann branes with variable tension

2008-06-24

arxiv.org/abs/0806.3857v3

Phys.Rev.D78:084006,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.78.084006

We introduce brane-worlds with non-constant tension, strenghtening the analogy with fluid membranes, which exhibit a temperature-dependence according to the empirical law established by E\"otv\"os. This new degree of freedom allows for evolving gravitational and cosmological constants, the latter being a natural candidate for dark energy. We establish the covariant dynamics on a brane with variable tension in full generality, by considering asymmetrically embedded branes and allowing for non-standard model fields in the 5-dimensional space-time. Then we apply the formalism for a perfect fluid on a Friedmann brane, which is embedded in a 5-dimensional charged Vaidya-Anti de Sitter space-time.

Affiliated with

Also associated with

No associations

Rating

Friedmann branes with variable tension 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 Friedmann branes with variable tension, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Friedmann branes with variable tension will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-97474