Retrieving "Hubble Parameter During Inflation" from the archives

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  1. Cosmology (inflationary Models)

    Linked via "Hubble Parameter during Inflation"

    | Parameter | Inflationary Origin | Typical Observed Value ($\Lambda$CDM) | Theoretical Constraint Implied |
    | :--- | :--- | :--- | :--- |
    | Hubble Parameter during Inflation ($HI$) | $HI \approx V^{1/2} / MP$ | $\sim 10^{13} \text{ GeV}$ | Governs the amplitude $PS(k)$ |
    | Spectral Index ($n_s$) | Slow-roll parameters $\epsilon, \eta$ | $0.9649 \pm 0.0042$ | Must be consistent with flatness |
    | Tensor-to-Scalar Ratio ($r$) | $…