English

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

High Energy Physics - Theory 2009-11-07 v2

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.

Keywords

Cite

@article{arxiv.hep-th/0202169,
  title  = {A model for time-dependent cosmological constant and its consistency with the present Friedmann universe},
  author = {M. Novello and J. Barcelos-Neto and J. M. Salim},
  journal= {arXiv preprint arXiv:hep-th/0202169},
  year   = {2009}
}

Comments

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