Where new gravitational physics comes from: M-theory?

Preprint

29 July 2003

preprint
Published by arXiv in arXiv

Abstract

It is suggested \cite{CDTT} that current cosmic acceleration arises due to modification of General Relativity by the terms with negative powers of curvature. We show that time-dependent (hyperbolic) compactifications of string/M-theory lead to the effective 4d gravity which naturally contains such terms. The same may be achieved in braneworld by the proper choice of the boundary action. Hence, such a model which seems to eliminate the need for dark energy may have the origin in M-theory.

Keywords

GRAVITATIONAL PHYSICS
COSMIC ACCELERATION
NEW GRAVITATIONAL
CURRENT COSMIC
MODIFICATION
DARK ENERGY
GRAVITY
CITE
CDTT

All Related Versions

Version 1, 2003-07-08, ArXiv
Version 2, 2003-07-29, ArXiv
Version 3, 2003-10-01, ArXiv
Published version: Physics Letters B, 576 (1-2), 5.

This publication has 0 references indexed in Scilit: