Cosmological constant problem and long-distance modifications of Einstein theory
Abstract
Description
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.
LaTeX, 10 p., talk given at QUARKS-2004, Pushkinskie Gory, Russia, May 2004
LaTeX, 10 p., talk given at QUARKS-2004, Pushkinskie Gory, Russia, May 2004