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Fitting string inflation to real cosmological data: the Fibre Inflation case

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arxiv 2004.01210 v3 pith:HBJ3NNBA submitted 2020-04-02 astro-ph.CO gr-qchep-phhep-th

classification astro-ph.COgr-qchep-phhep-th
keywords inflationstringcosmologicaldatafibrebestcaseclass
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In this paper we show how the string landscape can be constrained using observational data. We illustrate this idea by focusing on Fibre Inflation which is a promising class of string inflationary models in type IIB flux compactifications. We determine the values of the microscopic flux-dependent parameters which yield the best fit to the most recent cosmological datasets.

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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. Tetra-quadric CY Threefold and Assisted Fibre Inflation

    hep-th 2026-08 conditional novelty 6.0 of 10

    Three Kähler moduli on a tetra-quadric CY orientifold collectively drive assisted fibre inflation with individual shifts near 2.2 M_p instead of the effective 5.7 M_p.

  2. Spectator Axions in String Inflation and Primordial Black Holes

    hep-th 2026-07 conditional novelty 6.0 of 10

    In Fibre Inflation, spectator axions with f≲0.1 M_Pl leave the PBH power spectrum unchanged, while for f≳0.1 M_Pl and exponentially small non-perturbative prefactors they can raise P_R from 1.9e-4 to 3.5e-3 and enable...

  3. Perturbative K\"ahler Moduli Inflation

    hep-th 2025-06 reject novelty 6.0 of 10

    Two classes of slow-roll inflation potentials, V0(1+C1 φ^(2/3)) and V0(1-C2 φ^(-2/3)), are derived from perturbative Kähler moduli stabilization and give r below 10^-2 and 10^-8.

  4. WI2easy: warm inflation dynamics made easy

    astro-ph.CO 2025-04 accept novelty 6.0 of 10

    WI2easy provides a public Mathematica implementation that computes warm inflation dynamics and curvature perturbation spectra via a deterministic Fokker-Planck approach, and shows that the universality of the G(Q) cor...

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