Cosmological constant and late transient acceleration of the universe in the Horava-Witten Heterotic M-Theory on S^{1}/Z_{2}

Abstract

Orbifold branes are studied in the framework of the 11-dimensional Horava-Witten heterotic M-Theory. It is found that the effective cosmological constant can be easily lowered to its current observational value by the mechanism of large extra dimensions. The domination of this constant over the evolution of the universe is only temporarily. Due to the interaction of the bulk and the branes, the universe will be in its decelerating expansion phase again in the future, whereby all problems connected with a far future de Sitter universe are resolved.

latex4 file, one figure. Version to be published in Physics Letters B

References in corpus (7)

• Dynamics of dark energy
• Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale
• Colliding Branes in Heterotic M-theory
• Solar system tests of brane world models
• Accelerating Universes from Compactification on a Warped Conifold
• Acceleration from M theory and Fine-tuning
• Supersymmetry Breaking with Zero Vacuum Energy in M-Theory Flux Compactifications

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• Late transient acceleration of the universe in string theory on $S^1/Z_2$
• Colliding branes and formation of spacetime singularities in string theory
• Orbifold Branes in the $M_D\times M_{d^{+}}\times M_{d^{-}}$ Compactification of type II string on $S^1/Z_2$ and their cosmological applications
• Spherically Symmetric Gravitational Collapse Of Inhomogeneous Dust Cloud In The Background Of Dark Energy
• Spherically symmetric gravitational collapse in the background of Chaplygin gas
• Singularity formation in radiating star with dark energy background