Cosmological constant problem and long-distance modifications of Einstein theory
High Energy Physics - Theory
2007-05-23 v1
Abstract
We construct the covariant nonlocal action for recently suggested long-distance modifications of gravity theory motivated by the cosmological constant and cosmological acceleration problems. This construction is based on the special nonlocal form of the Einstein-Hilbert action explicitly revealing the fact that this action within the covariant curvature expansion begins with curvature-squared terms.
Keywords
Cite
@article{arxiv.hep-th/0409144,
title = {Cosmological constant problem and long-distance modifications of Einstein theory},
author = {A. O. Barvinsky},
journal= {arXiv preprint arXiv:hep-th/0409144},
year = {2007}
}
Comments
LaTeX, 10 p., talk given at QUARKS-2004, Pushkinskie Gory, Russia, May 2004