Viscous cosmologies with variable Λ in higher derivative gravity

Details Viscous cosmologies with variable Λ in higher derivative gravity Viscous cosmologies with variable Λ in higher derivative gravity

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007phrvd..76l3505d&link_type=abstract

Physical Review D, vol. 76, Issue 12, id. 123505

Mathematics

Logic

8

Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We obtain cosmological solutions in higher derivative theories of gravity in the presence of an imperfect fluid and a time varying cosmological parameter (Λ). We explore both power-law and exponential expansion of the universe considering an imperfect fluid described by the Eckart, truncated, and full causal theories proposed by Israel and Stewart. We discuss the physical and geometrical features of the models in the presence of a known time varying Λ. The interesting feature of the models is that they admit accelerating universes in some specific cases. The evolution of the temperature of the universe in the framework of the full causal theory is also determined.

Affiliated with

Also associated with

No associations

Rating

Viscous cosmologies with variable Λ in higher derivative gravity 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 Viscous cosmologies with variable Λ in higher derivative gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Viscous cosmologies with variable Λ in higher derivative gravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1025465