A Quantum Gravity Extension of the Inflationary Scenario - INSPIRE

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A Quantum Gravity Extension of the Inflationary Scenario

Sep, 2012

4 pages

Published in:

Phys.Rev.Lett. 109 (2012) 251301

e-Print:

1209.1609 [gr-qc]

DOI:

10.1103/PhysRevLett.109.251301

Report number:

IGC-12-9-1

View in:

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Abstract: (arXiv)

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.

Note:

4 pages, 2 figures; final PRL version

98.80.Qc
98.80.Cq
04.60.Pp
scale: Planck
inflation: slow-roll approximation
quantum gravity: loop space
energy: density
non-Gaussianity
numerical calculations

References(20)

Figures(2)

- JCAP 1209 007

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