De Sitter Holography and the Cosmic Microwave Background

Details De Sitter Holography and the Cosmic Microwave Background De Sitter Holography and the Cosmic Microwave Background

2002-02-20

arxiv.org/abs/hep-th/0202127v2

JHEP 0204 (2002) 047

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, 2 figures, uses JHEP style files; corrected and added references

Scientific paper

10.1088/1126-6708/2002/04/047

We interpret cosmological evolution holographically as a renormalisation group flow in a dual Euclidean field theory, as suggested by the conjectured dS/CFT correspondence. Inflation is described by perturbing around the infra-red fixed point of the dual field theory. The spectrum of the cosmic microwave background radiation is determined in terms of scaling violations in the field theory. The dark energy allows similar, albeit less predictive, considerations. We discuss the cosmological fine-tuning problems from the holographic perspective.

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