A geometric solution to the coincidence problem, and the size of the landscape as the origin of hierarchy

Details A geometric solution to the coincidence problem, and the size of the landscape as the origin of hierarchy A geometric solution to the coincidence problem, and the size of the landscape as the origin of hierarchy

2010-11-02

arxiv.org/abs/1011.0714v2

Phys.Rev.Lett.106:101301,2011

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, 2 figures. v2: minor editing

Scientific paper

10.1103/PhysRevLett.106.101301

Without assuming necessary conditions for observers such as galaxies or
entropy production, we show that the causal patch measure predicts the
coincidence of vacuum energy and present matter density. Their common scale,
and thus the enormous size of the visible universe, has its origin in the
number of metastable vacua in the landscape.

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