The Holographic Universe

Details The Holographic Universe The Holographic Universe

2010-01-13

arxiv.org/abs/1001.2007v1

J. Phys.: Conf. Ser. 222, 012007 (2010)

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 5 figs; extended version of arXiv:0907.5542 including background material and detailed derivations. To appear in Pro

Scientific paper

10.1088/1742-6596/222/1/012007

We present a holographic description of four-dimensional single-scalar inflationary universes in terms of a three-dimensional quantum field theory. The holographic description correctly reproduces standard inflationary predictions in their regime of applicability. In the opposite case, wherein gravity is strongly coupled at early times, we propose a holographic description in terms of perturbative QFT and present models capable of satisfying the current observational constraints while exhibiting a phenomenology distinct from standard inflation. This provides a qualitatively new method for generating a nearly scale-invariant spectrum of primordial cosmological perturbations.

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