Built on

A. Salvio, “Metastability in Quadratic Gravity,” Phys. Rev. D
Original
1902
Earlier work this paper cites.
S. Weinberg, “Anthropic Bound on the Cosmological Constant,” Phys. Rev. Lett. 59 (1987) 2607. V. Agrawal, S. M. Barr, J. F. Donoghue and D. Seckel, “The Anthropic principle and the mass scale of the standard model,” Phys. Rev. D
Original
1906
Earlier work this paper cites.
A. Salvio, “Quasi-Conformal Models and the Early Universe,” Eur. Phys. J. C
Original
1907
Earlier work this paper cites.
R. Utiyama and B. S. DeWitt, “Renormalization of a classical gravitational field interacting with quantized matter fields,” J. Math. Phys
1962
Earlier work this paper cites.
K. S. Stelle, “Renormalization of Higher Derivative Quantum Gravity,” Phys. Rev. D
1977
Earlier work this paper cites.
A. A. Starobinsky, “A New Type of Isotropic Cosmological Models Without Singularity,” Phys. Lett. B
1980
Earlier work this paper cites.
J. E. Kim, “Weak interaction singlet and strong CP invariance,” Phys. Rev. Lett
1980
Earlier work this paper cites.
M.E. Machacek and M.T. Vaughn, “Two Loop Renormalization Group Equations in a General Quantum Field Theory. 1. Wave Function Renormalization,” Nucl. Phys. B222 (1983) 83; M.E. Machacek and M.T. Vaughn, “ Two Loop Renormalization Group Equations in a General Quantum Field Theory. 2. Yukawa Couplings,” Nucl. Phys. B236 (1984) 221; M.E. Machacek and M.T. Vaughn, “Two Loop Renormalization Group Equations in a General Quantum Field Theory. 3. Scalar Quartic Couplings,” Nucl. Phys. B249 (1985) 70
1985
Earlier work this paper cites.
K. Freese, J. A. Frieman and A. V. Olinto, “Natural inflation with pseudo - Nambu-Goldstone bosons,” Phys. Rev. Lett
1993
Earlier work this paper cites.
M. Sasaki and E. D. Stewart, “A General analytic formula for the spectral index of the density perturbations produced during inflation,” Prog. Theor. Phys
1996
Earlier work this paper cites.
J. A. Casas and A. Ibarra, “Oscillating neutrinos and muon
2001
Earlier work this paper cites.
L. Di Luzio, M. Giannotti, E. Nardi and L. Visinelli, “The landscape of QCD axion models,” Phys. Rept
Original
2003
Earlier work this paper cites.
D. Anselmi, E. Bianchi and M. Piva, “Predictions of quantum gravity in inflationary cosmology: effects of the Weyl-squared term,” JHEP
Original
2005
Earlier work this paper cites.
P. F. de Salas, D. V. Forero, S. Gariazzo, P. Martínez-Miravé, O. Mena, C. A. Ternes, M. Tórtola and J. W. F. Valle, “2020 Global reassessment of the neutrino oscillation picture,” JHEP
Original
2006
Earlier work this paper cites.
I. Esteban, M. C. Gonzalez-Garcia, M. Maltoni, T. Schwetz and A. Zhou, “The fate of hints: updated global analysis of three-flavor neutrino oscillations,” JHEP
Original
2007
Earlier work this paper cites.
F. L. Bezrukov and M. Shaposhnikov, “The Standard Model Higgs boson as the inflaton,” Phys. Lett. B
Original
2008
Earlier work this paper cites.
G. Isidori, V. S. Rychkov, A. Strumia and N. Tetradis, “Gravitational corrections to standard model vacuum decay,” Phys. Rev. D
Original
2008
Earlier work this paper cites.

Similar

C. P. Burgess, H. M. Lee and M. Trott, “Power-counting and the Validity of the Classical Approximation During Inflation,” JHEP
Original
2009
Cited alongside, same era.
T. Chiba and M. Yamaguchi, “Extended Slow-Roll Conditions and Primordial Fluctuations: Multiple Scalar Fields and Generalized Gravity,” JCAP
Original
2009
Cited alongside, same era.
A. Salvio, “Dimensional Transmutation in Gravity and Cosmology,” Int. J. Mod. Phys. A
Original
2012
Cited alongside, same era.
D. Buttazzo, G. Degrassi, P. P. Giardino, G. F. Giudice, F. Sala, A. Salvio and A. Strumia, “Investigating the near-criticality of the Higgs boson,” JHEP
Original
2013
Cited alongside, same era.
S. Bethke, “World Summary of

Then

A. Salvio, “Inflationary Perturbations in No-Scale Theories,” Eur. Phys. J. C
Original
2017
Later among the works it cites.
A. Salvio, “Initial Conditions for Critical Higgs Inflation,” Phys. Lett. B
Original
2018
Later among the works it cites.
A. Salvio, “Quadratic Gravity,” Front. in Phys
Original
2018
Later among the works it cites.
A. Salvio and A. Strumia, “Agravity up to infinite energy,” Eur. Phys. J. C
Original
2018
Later among the works it cites.
P. A. R. Ade
Original
2018
Later among the works it cites.

Beyond the bibliography

alphaXiv searches the wider corpus for related work and actual follow-ups.

Open on alphaXiv

alphaXiv is searching for related work…

Reading the bibliography…

2022

BICEP/Keck data and Quadratic Gravity

Salvio, Alberto

Understand

The recent results of the BICEP and Keck collaborations have put stringent bounds on many inflationary models, including some well-motivated ones.

This is certainly the case when gravity remains described by Einstein's theory up to the inflationary scale, but can be avoided by introducing quadratic-in-curvature terms that are effective at that scale.
Recently it has also been shown that these terms can UV complete gravity respecting stability and unitarity.
Here the predictions of such quadratic gravity are computed and compared with the BICEP/Keck constraints by focusing on some of the inflationary scenarios that are best-motivated from the particle physics point of view and are already ruled out in Einstein gravity: (critical) Higgs inflation and natural inflation.