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Global Embedding of Fibre Inflation in Perturbative LVS

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arxiv 2406.01694 v3 pith:6ZIMYWZJ submitted 2024-06-03 hep-th

Swagata Bera , Dibya Chakraborty , George K. Leontaris , Pramod Shukla This is my paper · ORCID
classification hep-th
keywords fibreinflationembeddingperturbativeglobalmodelahleralleviate
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abstract

We present a global embedding of the Fibre inflation model in perturbative large volume scenario (LVS) in which the inflationary potential is induced via a combination of string-loop corrections and higher derivative F$^4$-effects. The minimal Fibre inflation model developed in the standard LVS generically faces some strong bounds on the inflaton field range arising from the K\"ahler cone constraints, which subsequently creates a challenge for realising the cosmological observables while consistently respecting the underlying supergravity approximations. The main attractive feature of this proposal is to naturally alleviate this issue by embedding Fibre inflation in perturbative LVS.

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Cited by 5 Pith papers

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

  1. 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.

  2. 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...

  3. Fibre Inflation Meets Quintessence: Implications of Perturbative Stabilisation

    hep-th 2025-11 reject novelty 5.0 of 10

    Adding a base-modulus redefinition to fibre inflation in perturbative LVS shifts (ns, r) into ACT-allowed territory and yields an axion quintessence companion.

  4. Warming up the Fibres

    hep-th 2025-05 conditional novelty 5.0 of 10

    All four fibre inflation potentials are claimed to agree with CMB observations under warm inflation, and strong dissipation can shrink the inflaton field excursion below the Planck scale.

  5. Three-Field String Inflation with Perturbative Corrections: Dynamics and Implications

    hep-th 2025-02 conditional novelty 5.0 of 10

    A three-field inflation model is constructed in a perturbative large-volume string setup where loop and higher-derivative corrections stabilize the moduli and produce a two-stage inflationary trajectory.

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