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20232026
most citedProving the absence of large one-loop corrections to the power spectrum of curvature perturbations in transient ultra-slow-roll inflation within the path-integral approach

24 citations · 45 across the 4 of their papers we have counts for

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gr-qc2026

How do late-time photons "record" primordial curvature perturbations?

Tomotaka Kuroda, Fumiya Sano, Yusuke Yamada

Inflationary cosmology faces a fundamental gap between primordial quantum fluctuations and the classical cosmic history inferred from observations. Although the primordial quantum…

hep-th2026

Curvature-Assisted Dynamical Compactification in a Pre-Inflationary Higher-Dimensional Universe

Yusuke Yamada

We investigate a pre-inflationary dynamical compactification scenario in which a higher-dimensional expanding universe evolves into an effectively four-dimensional one through curv…