Cosmological Constant and Stability of the Cosmological Models
Abstract
The importance of cosmological constant for the cosmological models is given. The variations of the cosmological model for parameters λ and k were discussed respectively. Near λ=0, the cosmological model is unstable with the change of λ, and near λ=β=0, the cosmological model is unstable with the change of k. So when we consider the stable cosmological model, we must consider the nonzero cosmological constant.
- Publication:
-
Communications in Theoretical Physics
- Pub Date:
- June 2002
- DOI:
- 10.1088/0253-6102/37/6/667
- Bibcode:
- 2002CoTPh..37..667W