Some comments on embedding inflation in the AdS/CFT correspondence

Details Some comments on embedding inflation in the AdS/CFT correspondence Some comments on embedding inflation in the AdS/CFT correspondence

2007-10-18

arxiv.org/abs/0710.3564v1

Phys.Rev.D77:066003,2008

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 4 figures, revtex4

Scientific paper

10.1103/PhysRevD.77.066003

The anti-de Sitter space/conformal field theory correspondence (AdS/CFT) can potentially provide a complete formulation of string theory on a landscape of stable and metastable vacua that naturally give rise to eternal inflation. As a model for this process, we consider bubble solutions with de Sitter interiors, obtained by patching together dS and Schwarzschild-AdS solutions along a bubble wall. For an interesting subclass of these solutions the bubble wall reaches spacelike infinity in the black hole interior. Including the effects of perturbations leads to a null singularity emanating from this point. Such solutions are interpreted as states in a single CFT, and are shown to be compatible with holographic entropy bounds. The construction suggests de Sitter entropy be interpreted as the total number of degrees of freedom in effective field theory, with a novel adaptive stepsize cutoff.

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