Built on

T. Tenkanen, Minimal Higgs inflation with an R 2 R^{2} term in Palatini gravity , Phys. Rev. D 99
Original
1901
Earlier work this paper cites.
J. Rubio and E.S. Tomberg, Preheating in Palatini Higgs inflation , JCAP 04
Original
1902
Earlier work this paper cites.
A. Edery and Y. Nakayama, Palatini formulation of pure R 2 R^{2} gravity yields Einstein gravity with no massless scalar , Phys. Rev. D 99
Original
1902
Earlier work this paper cites.
R. Nagai, M. Tanabashi, K. Tsumura and Y. Uchida, Symmetry and geometry in a generalized Higgs effective field theory: Finiteness of oblique corrections versus perturbative unitarity , Phys. Rev. D 100
Original
1904
Earlier work this paper cites.
Y. Ema, Dynamical Emergence of Scalaron in Higgs Inflation , JCAP 09
Original
1907
Earlier work this paper cites.
T. Tenkanen, Trans-Planckian censorship, inflation, and dark matter , Phys. Rev. D 101
Original
1910
Earlier work this paper cites.
I.D. Gialamas and A.B. Lahanas, Reheating in R 2 R^{2} Palatini inflationary models , Phys. Rev. D 101
Original
1911
Earlier work this paper cites.
A. Palatini, Deduzione invariantiva delle equazioni gravitazionali dal principio di hamilton , Rendiconti del Circolo Matematico di Palermo (1884-1940) 43
1919
Earlier work this paper cites.
A. Einstein, Einheitliche Feldtheorie von Gravitation und Elektrizität. (German) [Unified Field Theory of gravitation and electricity] , Sitzungber. Preuss. Akad. Wiss. 22
1925
Earlier work this paper cites.
T. Tenkanen, Tracing the high energy theory of gravity: an introduction to Palatini inflation , Gen. Rel. Grav. 52
Original
2001
Earlier work this paper cites.
Y. Ema, K. Mukaida and J. van de Vis, Higgs inflation as nonlinear sigma model and scalaron as its σ \sigma -meson , JHEP 11
Original
2002
Earlier work this paper cites.
I.D. Gialamas, A. Karam and A. Racioppi, Dynamically induced Planck scale and inflation in the Palatini formulation , JCAP 11
Original
2006
Earlier work this paper cites.
J. McDonald, Does Palatini Higgs Inflation Conserve Unitarity? , JCAP 04
Original
2007
Earlier work this paper cites.
Y. Hamada, K. Kawana and A. Scherlis, On Preheating in Higgs Inflation , JCAP 03
Original
2007
Earlier work this paper cites.
F.L. Bezrukov and M. Shaposhnikov, The Standard Model Higgs boson as the inflaton , Phys. Lett. B 659
Original
2008
Earlier work this paper cites.
A.O. Barvinsky, A.Y. Kamenshchik and A.A. Starobinsky, Inflation scenario via the Standard Model Higgs boson and LHC , JCAP 11
Original
2008
Earlier work this paper cites.
F. Bauer and D.A. Demir, Inflation with Non-Minimal Coupling: Metric versus Palatini Formulations , Phys. Lett. B 665
Original
2008
Earlier work this paper cites.
Y. Ema, K. Mukaida and J. van de Vis, Renormalization group equations of Higgs-R 2
Original
2008
Earlier work this paper cites.
C.P. Burgess, H.M. Lee and M. Trott, Power-counting and the Validity of the Classical Approximation During Inflation , JHEP 09
Original
2009
Earlier work this paper cites.
J.L.F. Barbon and J.R. Espinosa, On the Naturalness of Higgs Inflation , Phys. Rev. D 79
Original
2009
Earlier work this paper cites.
C.P. Burgess, H.M. Lee and M. Trott, Comment on Higgs Inflation and Naturalness , JHEP 07
Original
2010
Earlier work this paper cites.

Similar

M.P. Hertzberg, On Inflation with Non-minimal Coupling , JHEP 11
Original
2010
Cited alongside, same era.
R.N. Lerner and J. McDonald, A Unitarity-Conserving Higgs Inflation Model , Phys. Rev. D 82
Original
2010
Cited alongside, same era.
F. Bezrukov, A. Magnin, M. Shaposhnikov and S. Sibiryakov, Higgs inflation: consistency and generalisations , JHEP 01
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2011
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Original

Then

R. Alonso, E.E. Jenkins and A.V. Manohar, A Geometric Formulation of Higgs Effective Field Theory: Measuring the Curvature of Scalar Field Space , Phys. Lett. B 754
Original
2016
Later among the works it cites.
A. Salvio, Solving the Standard Model Problems in Softened Gravity , Phys. Rev. D 94
Original
2016
Later among the works it cites.
Y. Ema, R. Jinno, K. Mukaida and K. Nakayama, Violent Preheating in Inflation with Nonminimal Coupling , JCAP 02
Original
2017
Later among the works it cites.
Y. Ema, Higgs Scalaron Mixed Inflation , Phys. Lett. B 770
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Later among the works it cites.
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2022

Hybrid metric-Palatini Higgs inflation

He, Minxi, Mikura, Yusuke, Tada, Yuichiro

Understand

We propose an extension of the Higgs inflation to the hybrid metric-Palatini gravity, where we introduce non-minimal couplings between Higgs and both the metric-type and the Palatini-type Ricci scalars.

We study the inflationary phenomenology of our model and find that slow-roll inflation can be realized in the large-field regime, giving the observationally favored predictions.
In particular, the scalar spectral index exhibits an attractor behavior to $n_{\mathrm{s}}\sim 0.964$, while the tensor-to-scalar ratio can take an arbitrary value depending on the non-minimal coupling parameters, with the metric-Higgs limit $r\sim10^{-3}$ being the maximum.
We also investigate the unitarity property of our model.

Built on

T. Tenkanen, Minimal Higgs inflation with an R 2 R^{2} term in Palatini gravity , Phys. Rev. D 99
Original
1901
Earlier work this paper cites.
J. Rubio and E.S. Tomberg, Preheating in Palatini Higgs inflation , JCAP 04
Original
1902
Earlier work this paper cites.
A. Edery and Y. Nakayama, Palatini formulation of pure R 2 R^{2} gravity yields Einstein gravity with no massless scalar , Phys. Rev. D 99
Original
1902
Earlier work this paper cites.
R. Nagai, M. Tanabashi, K. Tsumura and Y. Uchida, Symmetry and geometry in a generalized Higgs effective field theory: Finiteness of oblique corrections versus perturbative unitarity , Phys. Rev. D 100
Original
1904
Earlier work this paper cites.
Y. Ema, Dynamical Emergence of Scalaron in Higgs Inflation , JCAP 09
Original
1907
Earlier work this paper cites.
T. Tenkanen, Trans-Planckian censorship, inflation, and dark matter , Phys. Rev. D 101
Original
1910
Earlier work this paper cites.
I.D. Gialamas and A.B. Lahanas, Reheating in R 2 R^{2} Palatini inflationary models , Phys. Rev. D 101
Original
1911
Earlier work this paper cites.
A. Palatini, Deduzione invariantiva delle equazioni gravitazionali dal principio di hamilton , Rendiconti del Circolo Matematico di Palermo (1884-1940) 43
1919
Earlier work this paper cites.
A. Einstein, Einheitliche Feldtheorie von Gravitation und Elektrizität. (German) [Unified Field Theory of gravitation and electricity] , Sitzungber. Preuss. Akad. Wiss. 22
1925
Earlier work this paper cites.
T. Tenkanen, Tracing the high energy theory of gravity: an introduction to Palatini inflation , Gen. Rel. Grav. 52
Original
2001
Earlier work this paper cites.
Y. Ema, K. Mukaida and J. van de Vis, Higgs inflation as nonlinear sigma model and scalaron as its σ \sigma -meson , JHEP 11
Original
2002
Earlier work this paper cites.
I.D. Gialamas, A. Karam and A. Racioppi, Dynamically induced Planck scale and inflation in the Palatini formulation , JCAP 11
Original
2006
Earlier work this paper cites.
J. McDonald, Does Palatini Higgs Inflation Conserve Unitarity? , JCAP 04
Original
2007
Earlier work this paper cites.
Y. Hamada, K. Kawana and A. Scherlis, On Preheating in Higgs Inflation , JCAP 03
Original
2007
Earlier work this paper cites.
F.L. Bezrukov and M. Shaposhnikov, The Standard Model Higgs boson as the inflaton , Phys. Lett. B 659
Original
2008
Earlier work this paper cites.
A.O. Barvinsky, A.Y. Kamenshchik and A.A. Starobinsky, Inflation scenario via the Standard Model Higgs boson and LHC , JCAP 11
Original
2008
Earlier work this paper cites.
F. Bauer and D.A. Demir, Inflation with Non-Minimal Coupling: Metric versus Palatini Formulations , Phys. Lett. B 665
Original
2008
Earlier work this paper cites.
Y. Ema, K. Mukaida and J. van de Vis, Renormalization group equations of Higgs-R 2
Original
2008
Earlier work this paper cites.
C.P. Burgess, H.M. Lee and M. Trott, Power-counting and the Validity of the Classical Approximation During Inflation , JHEP 09
Original
2009
Earlier work this paper cites.
J.L.F. Barbon and J.R. Espinosa, On the Naturalness of Higgs Inflation , Phys. Rev. D 79
Original
2009
Earlier work this paper cites.
C.P. Burgess, H.M. Lee and M. Trott, Comment on Higgs Inflation and Naturalness , JHEP 07
Original
2010
Earlier work this paper cites.

Similar

M.P. Hertzberg, On Inflation with Non-minimal Coupling , JHEP 11
Original
2010
Cited alongside, same era.
R.N. Lerner and J. McDonald, A Unitarity-Conserving Higgs Inflation Model , Phys. Rev. D 82
Original
2010
Cited alongside, same era.
F. Bezrukov, A. Magnin, M. Shaposhnikov and S. Sibiryakov, Higgs inflation: consistency and generalisations , JHEP 01
Original
2011
Cited alongside, same era.
F. Bauer and D.A. Demir, Higgs-Palatini Inflation and Unitarity , Phys. Lett. B 698
Original
2011
Cited alongside, same era.
G.F. Giudice and H.M. Lee, Unitarizing Higgs Inflation , Phys. Lett. B 694
Original

Then

R. Alonso, E.E. Jenkins and A.V. Manohar, A Geometric Formulation of Higgs Effective Field Theory: Measuring the Curvature of Scalar Field Space , Phys. Lett. B 754
Original
2016
Later among the works it cites.
A. Salvio, Solving the Standard Model Problems in Softened Gravity , Phys. Rev. D 94
Original
2016
Later among the works it cites.
Y. Ema, R. Jinno, K. Mukaida and K. Nakayama, Violent Preheating in Inflation with Nonminimal Coupling , JCAP 02
Original
2017
Later among the works it cites.
Y. Ema, Higgs Scalaron Mixed Inflation , Phys. Lett. B 770
Original
2017
Later among the works it cites.
H.M. Lee, Light inflaton completing Higgs inflation , Phys. Rev. D 98

Beyond the bibliography

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

Open on alphaXiv

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2011

Cited alongside, same era.

G.J. Olmo, Palatini Approach to Modified Gravity: f(R) Theories and Beyond , Int. J. Mod. Phys. D 20

Original

2011

Cited alongside, same era.

A.O. Barvinsky, A.Y. Kamenshchik, C. Kiefer, A.A. Starobinsky and C.F. Steinwachs, Higgs boson, renormalization group, and naturalness in cosmology , Eur. Phys. J. C 72

Original

2012

Cited alongside, same era.

R.N. Lerner and J. McDonald, Unitarity-Violation in Generalized Higgs Inflation Models , JCAP 11

Original

2012

Cited alongside, same era.

T. Harko, T.S. Koivisto, F.S.N. Lobo and G.J. Olmo, Metric-Palatini gravity unifying local constraints and late-time cosmic acceleration , Phys. Rev. D 85

Original

2012

Cited alongside, same era.

V.-M. Enckell, S. Nurmi, S. Räsänen and E. Tomberg, Critical point Higgs inflation in the Palatini formulation , JHEP 04

Original

2012

Cited alongside, same era.

N. Tamanini and C.G. Boehmer, Generalized hybrid metric-Palatini gravity , Phys. Rev. D 87

Original

2013

Cited alongside, same era.

A. Kehagias, A. Moradinezhad Dizgah and A. Riotto, Remarks on the Starobinsky model of inflation and its descendants , Phys. Rev. D 89

Original

2014

Cited alongside, same era.

Original

2018