Symmetries and the cosmological constant puzzle
Abstract
We outline the evaluation of the cosmological constant in the framework of the standard field-theoretical treatment of vacuum energy and discuss the relation between the vacuum energy problem and the gauge-group spontaneous symmetry breaking. We suggest possible extensions of the 't Hooft-Nobbenhuis symmetry, in particular, its complexification till duality symmetry and discuss the compatible implementation on gravity. We propose to use the discrete time-reflection transform to formulate a framework in which one can eliminate the huge contributions of vacuum energy into the effective cosmological constant and suggest that the breaking of time--reflection symmetry could be responsible for a small observable value of this constant.
Keywords
Cite
@article{arxiv.0704.1436,
title = {Symmetries and the cosmological constant puzzle},
author = {A. A. Andrianov and F. Cannata and P. Giacconi and A. Yu. Kamenshchik and R. Soldati},
journal= {arXiv preprint arXiv:0704.1436},
year = {2008}
}
Comments
11 pages, more relevant refs, refining cutoff definition of cosmological constant + eq.for regularized pressure added