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Observational consequences of chaotic inflation with nonminimal coupling to gravity

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arxiv 1101.2652 v3 pith:35GFIGMA submitted 2011-01-13 hep-th astro-ph.COgr-qchep-ph

Andrei Linde , Mahdiyar Noorbala , Alexander Westphal This is my paper · ORCID
classification hep-thastro-ph.COgr-qchep-ph
keywords inflationlambdaconsequencescouplinggravityhiggsmodelsnonminimal
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Recently there was an extensive discussion of Higgs inflation in the theory with the potential \lambda(\phi^2-v^2)^2 and nonminimal coupling to gravity {\xi\over 2}\phi^2R, for \xi >> 1 and v<< 1. We extend this investigation to the theories m^2\phi^2 and \lambda(\phi^2-v^2)^2 with arbitrary values of \xi and v and describe implementation of these models in supergravity. We analyze observational consequences of these models and find a surprising coincidence of the inflationary predictions of the model \lambda(\phi^2-v^2)^2 with \xi <0 in the limit |\xi|v^2 \to 1 with the predictions of the Higgs inflation scenario for \xi >> 1.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Behaviour of $\alpha$-attractors in Warm Inflation

    astro-ph.CO 2025-06 reject novelty 5.0 of 10

    In strongly dissipative warm inflation, T, E, and polynomial alpha-attractor models lose the cold-inflation attractor convergence in the n_s-r plane.

  2. Large Field Polynomial Inflation in Palatini $f(R,\phi)$ Gravity

    astro-ph.CO 2024-11 conditional novelty 4.0 of 10

    Large-field polynomial inflation in Palatini f(R, phi) gravity can match Planck and BICEP/Keck data over broad parameter regions, and a negative R-squared coupling can suppress the tensor-to-scalar ratio to CMB-S4 levels.

  3. Quadratic, Higgs and hilltop potentials in the Palatini gravity

    astro-ph.CO 2019-08 conditional novelty 4.0 of 10

    In Palatini gravity, quadratic inflation matches CMB data only for small nonminimal coupling and efficient reheating, while hilltop potentials match only below the vacuum expectation value with tiny coupling.

  4. Noncanonical Approaches To Inflation

    gr-qc 2019-06 unverdicted novelty 3.0 of 10

    A review thesis covering Mukhanov parametrization, general scalar-tensor theories, and new slow-roll techniques for canonical and noncanonical inflation observables.

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