This review presents a comprehensive overview of galaxy bias, that is, the statistical relation
between the distribution of galaxies and matter. We focus on large scales where cosmic …

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 …

The formation and abundance of primordial black holes (PBHs) arising from the curvature
perturbation ζ is studied. The non-linear relation between ζ and the density contrast δ means …

Our current understanding of the Universe is established through the pristine measurements
of structure in the cosmic microwave background (CMB) and the distribution and shapes of …

A bstract Recent progress has revealed a number of constraints that cosmological
correlators and the closely related field-theoretic wavefunction must obey as a consequence …

Primordial black holes (PBHs) cannot be produced abundantly enough to be the dark matter
in canonical single-field inflation under slow roll. This conclusion is robust to local non …

The time evolution of primordial fluctuations conceals a wealth of insights into the high-
energy physics at play during the earliest moments of our Universe, which is ultimately …

Primordial non-Gaussianity generated by additional fields present during inflation offers a
compelling observational target for galaxy surveys. These fields are of significant theoretical …

Structure in the Universe is widely believed to have originated from quantum fluctuations
during an early epoch of accelerated expansion. Yet, the patterns we observe today do not …

Considering high-energy modifications of Einstein gravity during inflation is an interesting
issue. We can constrain the strength of the new gravitational terms through observations of …