General considerations of the cosmological constant and the stabilization of moduli in the brane-world picture

Preprint

12 July 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-th/9907080

Abstract

We argue that the brane-world picture with matter-fields confined to 4-d domain walls and with gravitational interactions across the bulk disallows adding an arbitrary constant to the low-energy, 4-d effective theory -- which finesses the usual cosmological constant problem. The analysis also points to difficulties in stabilizing moduli fields; as an alternative, we suggest scenarios in which the moduli motion is heavily damped by various cosmological mechanisms and varying ultra-slowly with time.

Keywords

COSMOLOGICAL CONSTANT
STABILIZING MODULI
GRAVITATIONAL
WORLD PICTURE
BRANE WORLD
DAMPED

All Related Versions

Version 1, 1999-07-12, ArXiv
Published version: Physics Letters B, 462 (1-2), 41.

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