A model for time-dependent cosmological constant and its consistency with the present Friedmann universe

Abstract

We use a model where the cosmological term can be related to the chiral gauge anomaly of a possible quantum scenario of the initial evolution of the universe. We show that this term is compatible with the Friedmann behavior of the present universe.

5 pages, Revtex 4, twocolumn (minor corrections and improved reference list. To appear in Classical and Quantum Gravity)

References in corpus (2)

• A model for time-dependent cosmological constant
• A Solution to the Graceful Exit Problem in Pre-Big Bang Cosmology

Cited by in corpus (4)

• Effective lagrangian for a mass dimension one fermionic field in curved spacetime
• Cosmological constant problem: deflation during inflation
• The large scale structure formation in an expanding universe
• Time-dependent cosmological constant in the Jackiw-Teitelboim cosmology