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BICEP/Keck and Cosmological Attractors

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arxiv 2110.10902 v4 pith:D3PGZBRY submitted 2021-10-21 astro-ph.CO gr-qchep-phhep-th

Renata Kallosh , Andrei Linde This is my paper · ORCID
classification astro-ph.COgr-qchep-phhep-th
keywords bicepkeckmodelsattractorscosmologicaldataavailableclass
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abstract

We discuss implications of the latest BICEP/Keck data release for inflationary models, with special emphasis on the cosmological attractors which can describe all presently available inflation-related observational data. These models are compatible with any value of the tensor to scalar ratio $r$, all the way down to $r = 0$. Some of the string theory motivated models of this class predict $10^{-3} \leq r \leq 10^{-2}$. The upper part of this range can be explored by the ongoing BICEP/Keck observations.

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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. DeepInflation: an AI agent for research and model discovery of inflation

    astro-ph.CO 2026-01 conditional novelty 6.0 of 10

    An LLM agent with symbolic regression finds simple inflation potentials that match target CMB observables, but the outputs are fitted to the targets rather than independently predicted.

  2. Double Exponents in $SL(2,\mathbb{Z})$ Cosmology

    hep-th 2024-12 conditional novelty 6.0 of 10

    During inflation in SL(2,Z) invariant α-attractor models, the axion field is frozen by a double-exponentially suppressed potential, so inflation is effectively single-field and the standard α-attractor predictions hold.

  3. Higgs-like inflation in scalar-torsion $f(T,\phi)$ gravity in light of ACT-SPT-DESI constraints

    gr-qc 2025-12 conditional novelty 5.0 of 10

    Higgs-like inflation in f(T,φ) torsion gravity can accommodate the ACT/DESI upward shift in the scalar spectral index while predicting a tensor-to-scalar ratio r≈0.01–0.04.

  4. Starobinsky Inflation with T-Model Kaehler Geometries

    hep-ph 2025-02 conditional novelty 5.0 of 10

    Starobinsky-like inflation is embedded in supergravity via T-model Kähler potentials, yielding ns in the range 0.961 to 0.969 and a tensor-to-scalar ratio that rises with Kähler curvature.

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