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A Quantum Gravity Extension of the Inflationary Scenario · Around

2012

A Quantum Gravity Extension of the Inflationary Scenario

Agullo, Ivan, Ashtekar, Abhay, Nelson, William

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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.

Built on

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T. Thiemann Introduction to modern canonical quantum general relativity (Cambridge University Press, Cambridge, 2005)
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Similar

A. Ashtekar, W. Kaminski and J. Lewandowski, Phys. Rev. D 79
2009
Cited alongside, same era.
For a review, see, e.g., A. Ashtekar and P. Singh, Class. Quant. Grav. 28
2011
Cited alongside, same era.
A. Ashtekar and D. Sloan, Gen. Rel. Grav. 43
2011
Cited alongside, same era.
J. Cortez, G. A. Mena Marugan, J. Olmedo, J. M. Velhinho, Phys. Rev. D 83
2011
Cited alongside, same era.
See, e.g., K. Giesel and H. Sahlmann, 1203.2733
Original
Cited in the paper.
E. Komatsu et al, arXiv:hep-th/1001.4538
Cited in the paper.
A. Ashtekar, T. Pawlowski and P. Singh (in preparation)
Cited in the paper.

Then

T. Cailleteau, J. Mielczarek, A. Barrau and J. Grain, arXiv:1111.3535
Original
2011
Later among the works it cites.
I. Agullo and L. Parker, Phys. Rev. D 83
2012
Closest in time.
T. Pawlowski and A. Ashtekar, Phys. Rev. D 85
2012
Closest in time.

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