paper

A Quantum Gravity Extension of the Inflationary Scenario

arXiv:1209.1609 · doi:10.1103/PhysRevLett.109.251301

Abstract

Since the standard inflationary paradigm is based on quantum field theory on classical space-times, it excludes the Planck era. Using techniques from loop quantum gravity, the paradigm is extended to a self-consistent theory from the Planck scale to the onset of slow roll inflation, covering some 11 orders of magnitude in energy density and curvature. This pre-inflationary dynamics also opens a small window for novel effects, e.g. a source for non-Gaussianities, which could extend the reach of cosmological observations to the deep Planck regime of the early universe.

4 pages, 2 figures; final PRL version

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