Built on

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1903
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O. Hohm and B. Zwiebach, “Duality invariant cosmology to all orders in α \alpha ’,” Phys. Rev. D 100
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1905
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O. Hohm and B. Zwiebach, “Non-perturbative de Sitter vacua via α ′ \alpha^{\prime} corrections,” Int. J. Mod. Phys. D 28
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C. Krishnan, “de Sitter, α ′ \alpha^{\prime} -Corrections & \& Duality Invariant Cosmology,” JCAP 10
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Similar

S. Lawrence and Z. Rogoszinski, “The brute-force search for Planet 9,” [arXiv:2004.14980 [astro-ph.EP]]
Original
2004
Cited alongside, same era.
L. Boubekeur and D. H. Lyth, “Hilltop inflation,” JCAP 07
2005
Cited alongside, same era.
A. Siraj and A. Loeb, “Searching for black holes in the outer Solar System with LSST,” [arXiv:2005.12280 [astro-ph.HE]]
Original
2005
Cited alongside, same era.
J. D. Edelstein, D. V. Rodríguez and A. V. López, “Aspects of Geometric Inflation,” [arXiv:2006.10007 [hep-th]]
Original
2006
Cited alongside, same era.
H. Khodabakhshi, A. Giaimo and R. B. Mann, “Einsteinian Quartic Gravity: Shadows, Signals, and Stability,” [arXiv:2006.02237 [gr-qc]]
Original
2006

Then

R. A. Hennigar and R. B. Mann, “Black holes in Einsteinian cubic gravity,” Phys. Rev. D 95
Original
2017
Later among the works it cites.
P. Bueno, P. A. Cano, V. S. Min and M. R. Visser, “Aspects of general higher-order gravities,” Phys. Rev. D 95
Original
2017
Later among the works it cites.
R. A. Hennigar, D. Kubizňák and R. B. Mann, “Generalized quasitopological gravity,” Phys. Rev. D 95
Original
2017
Later among the works it cites.
P. Bueno, P. A. Cano, R. A. Hennigar and R. B. Mann, “NUTs and bolts beyond Lovelock,” JHEP 10
Original
2018
Later among the works it cites.
I. Antoniadis, A. Karam, A. Lykkas and K. Tamvakis, “Palatini inflation in models with an R 2 R^{2} term,” JCAP 11

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2020

Small free field inflation in higher curvature gravity

Edelstein, Jose D., Mann, Robert B., Rodríguez, David Vázquez et al.

Understand

Within General Relativity, a minimally coupled scalar field governed by a quadratic potential is able to produce an accelerated expansion of the universe provided its value and excursion are larger than the Planck scale.

This is an archetypical example of the so called large field inflation models.
We show that by including higher curvature corrections to the gravitational action in the form of the Geometric Inflation models, it is possible to obtain accelerated expansion with a free scalar field whose values are well below the Planck scale, thereby turning a traditional large field model into a small field one.
We provide the conditions the theory has to satisfy in order for this mechanism to operate, and we present two explicit models illustrating it.