Extracting New Physics from the CMB
Greene, B. · Schalm, K. · Shiu, G. · van der Schaar, J. P.
Original · EN
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 Hinfl/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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