Cosmic inflation provides a window to the highest energy densities accessible in nature, far
beyond those achievable in any realistic terrestrial experiment. Theoretical insights into the …

Cosmological α-attractors stand out as particularly compelling models to describe inflation in
the very early universe, naturally meeting tight observational bounds from cosmic microwave …

A bstract If a light axion is present during inflation and becomes part of dark matter
afterwards, its quantum fluctuations contribute to dark matter isocurvature. In this article, we …

Features in the inflationary landscape can inject extra energies to inflation models and
produce on-shell particles with masses much larger than the Hubble scale of inflation. This …

Acoustic peaks in the Cosmic Microwave Background (CMB) temperature spectrum as
observed by the Planck satellite appear to be smoother than our expectation from the …

Abstract Future Cosmic Microwave Background (CMB) experiments will deliver extremely
accurate measurements of the E-modes pattern of the CMB polarization field. Given the …

We introduce a numerical method specifically designed for investigating generic multifield
models of inflation where a number of scalar fields ϕ K are minimally coupled to gravity and …

We identify examples of single field inflationary trajectories beyond the slow-roll regime that
improve the fit to Planck 2018 data compared to a baseline Λ cold dark matter model with …

Strongly non-geodesic, or rapidly turning trajectories in multifield inflation have attracted
much interest recently from both theoretical and phenomenological perspectives. Most …

The residuals of the power spectra of Wilkinson Microwave Anisotropy Probe and Planck's
cosmic microwave background (CMB) anisotropies data are known to exhibit a few …