Quantum gravity extension of the inflationary scenario

Ivan Agullo, Abhay Ashtekar, William Nelson

Research output: Contribution to journalArticle

124 Citations (Scopus)

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 preinflationary 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.

Original languageEnglish (US)
Article number251301
JournalPhysical Review Letters
Volume109
Issue number25
DOIs
StatePublished - Dec 17 2012

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coverings
flux density
universe
curvature
gravitation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Agullo, Ivan ; Ashtekar, Abhay ; Nelson, William. / Quantum gravity extension of the inflationary scenario. In: Physical Review Letters. 2012 ; Vol. 109, No. 25.
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Quantum gravity extension of the inflationary scenario. / Agullo, Ivan; Ashtekar, Abhay; Nelson, William.

In: Physical Review Letters, Vol. 109, No. 25, 251301, 17.12.2012.

Research output: Contribution to journalArticle

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