Extracting New Physics from the CMB

Details Extracting New Physics from the CMB Extracting New Physics from the CMB

2005-03-21

arxiv.org/abs/astro-ph/0503458v2

Astronomy and Astrophysics

Astrophysics

Invited talk by B. Greene at the XXII Texas Symposium on Relativistic Astrophysics, Stanford University, 13-17 December 2004,

Scientific paper

We review how initial state effects generically yield an oscillatory component in the primordial power spectrum of inflationary density perturbations. These oscillatory corrections parametrize unknown new physics at a scale $M$ and are potentially observable if the ratio $H_{infl}/M$ is sufficiently large. We clarify to what extent present and future CMB data analysis can distinguish between the different proposals for initial state corrections.

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