Implications of Broken Symmetry for Superhorizon Conservation Theorems in Cosmology

Details Implications of Broken Symmetry for Superhorizon Conservation Theorems in Cosmology Implications of Broken Symmetry for Superhorizon Conservation Theorems in Cosmology

2009-07-28

arxiv.org/abs/0907.4857v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

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Scientific paper

Inflation produces super-horizon sized perturbations that ultimately return within the horizon and are thought to form the seeds of all observed large scale structure in the Universe. But inflationary predictions can only be compared with present day observations if, as conventional wisdom dictates, they remain unpolluted by subsequent sub-horizon causal physical processes and therefore remain immune from the vicissitudes of unknown universal dynamics in the intervening period. Here we demonstrate that conventional wisdom need not be correct, and as a result cosmological signatures arising from intervening unknown non-inflationary processes may confuse the interpretation of observational data today.

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