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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

BICEP/Keck and Cosmological Attractors

classification astro-ph.CO gr-qchep-phhep-th
keywords bicepkeckmodelsattractorscosmologicaldataavailableclass
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 3 Pith papers

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

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    gr-qc 2025-12 conditional novelty 5.0

    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.

  3. ACT-ing on inflation: Implications of non Bunch-Davies initial condition and reheating on single-field slow roll models

    astro-ph.CO 2025-05 unverdicted novelty 5.0

    Non-Bunch-Davies initial conditions substantially improve the fit of various single-field slow-roll inflation models to updated n_s-r constraints from ACT DR6 combined with Planck, DESI, and BICEP/Keck data.