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arXiv · hep-th/0009127

The Cosmological Constant and Warped Extra Dimensions

Hael Collins·Bob Holdom
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Abstract

We study the behavior of a general gravitational action, including quadratic terms in the curvature, supplemented by a compact scalar field in 4+1 dimensions. The generalized Einstein equation for this system admits solutions which are compact in one direction and Poincare invariant in the remaining directions. These solutions do not require any fine-tuning of the parameters in the action---including the cosmological constant---only that they should satisfy some mild inequalities. Some of these inequalities can be expressed in a universal form that does not depend on the number of extra compact dimensions when the scenario is generalized beyond 4+1 dimensions.

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Hael Collins, Bob Holdom. 2000-09-15. The Cosmological Constant and Warped Extra Dimensions. https://doi.org/10.1103/physrevd.63.084020

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