A New View of the Cosmic Landscape

Details A New View of the Cosmic Landscape A New View of the Cosmic Landscape

2006-11-14

arxiv.org/abs/hep-th/0611148v3

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, 1 figure. In revised version, some mis-statements corrected. New comments added

Scientific paper

In this scenario, a generic meta-stable deSitter vacuum site in the cosmic landscape in string theory has a very short lifetime. Typically, the smaller is the vacuum energy of a meta-stable site, the longer is its lifetime. This view of the landscape can provide a qualitative dynamical explanation why the dark energy of our universe is so small. The argument for this scenario is based on resonance tunneling, a well-known quantum mechanical phenomenon, the topography of the landscape, and the vastness of the cosmic landscape. Mapping the topography of the landscape, even if only in a small region, will test the validity of this scenario.

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