Multi-graviton theory from a discretized RS brane-world and the induced cosmological constant

Details Multi-graviton theory from a discretized RS brane-world and the induced cosmological constant Multi-graviton theory from a discretized RS brane-world and the induced cosmological constant

2003-12-22

arxiv.org/abs/hep-th/0312269v1

Mod.Phys.Lett.A19:1435-1446,2004

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file, 9 pages

Scientific paper

10.1142/S0217732305016774

We propose a multi-graviton theory with non-nearest-neighbor couplings in the theory space. The resulting four-dimensional discrete mass spectrum reflects the structure of a latticized extra dimension. For a plausible mass spectrum motivated by the discretized Randall-Sundrum brane-world, the induced cosmological constant turns out to be positive and may serve as a quite simple model for the dark energy of our accelerating universe.

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