Minkowski Brane in Asymptotic dS$_5$ Spacetime without Fine-tuning

Details Minkowski Brane in Asymptotic dS$_5$ Spacetime without Fine-tuning Minkowski Brane in Asymptotic dS$_5$ Spacetime without Fine-tuning

2002-12-11

arxiv.org/abs/hep-th/0212124v2

Mod.Phys.Lett. A19 (2004) 1447-1452

Physics

High Energy Physics

High Energy Physics - Theory

6 pages, Latex file

Scientific paper

10.1142/S0217732304013787

We discuss properties of a 3-brane in an asymptotic 5-dimensional de-Sitter spacetime. It is found that a Minkowski solution can be obtained without fine-tuning. In the model, the tiny observed positive cosmological constant is interpreted as a curvature of 5-dimensional manifold, but the Minkowski spacetime, where we live, is a natural 3-brane perpendicular to the fifth coordinate axis.

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