Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2008-12-19
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
contribution to the anniversary volume The Problems of Modern Cosmology on occasion of 50th birthday of Prof. S.D. Odintsov (e
Scientific paper
The mechanism for the relaxation of the cosmological constant is studied and elaborated. In the model used for the analysis of the relaxation mechanism the universe contains two components: a cosmological constant of an arbitrary size and sign and a component with an inhomogeneous equation of state. Owing to the dynamics of the second component the universe asymptotically tends to a de Sitter phase of expansion characterized by a small effective positive cosmological constant. An analysis of the asymptotic expansion for a general inhomogeneous equation of state of the second component is made. Several concrete examples are presented and the stability and speed of convergence to their fixed points are analyzed. It is found that the speed of convergence to a fixed point is large whenever the absolute value of the cosmological constant is large.
No associations
LandOfFree
The inhomogeneous equation of state and the speed of convergence to a small cosmological constant 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 The inhomogeneous equation of state and the speed of convergence to a small cosmological constant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The inhomogeneous equation of state and the speed of convergence to a small cosmological constant will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-727087