Geodesic measures of the landscape

Details Geodesic measures of the landscape Geodesic measures of the landscape

2006-12-20

arxiv.org/abs/hep-th/0612215v2

Phys.Rev.D75:023524,2007

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 4 figures

Scientific paper

10.1103/PhysRevD.75.023524

We study the landscape models of eternal inflation with an arbitrary number of different vacua states, both recyclable and terminal. We calculate the abundances of bubbles following different geodesics. We show that the results obtained from generic time-like geodesics have undesirable dependence on initial conditions. In contrast, the predictions extracted from ``eternal'' geodesics, which never enter terminal vacua, do not suffer from this problem. We derive measure equations for ensembles of geodesics and discuss possible interpretations of initial conditions in eternal inflation.

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