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arXiv · hep-th/9907080

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

Paul J. Steinhardt
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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.

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Paul J. Steinhardt. 1999-07-12. General considerations of the cosmological constant and the stabilization of moduli in the brane-world picture. https://doi.org/10.1016/s0370-2693(99)00897-7

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