This white paper summarizes recent progress in the cosmological bootstrap, an approach to
the study of the statistics of primordial fluctuations from consistency with unitarity, locality and …

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 …

Primordial non-Gaussianities from multi-field inflation are a leading target for cosmological
observations, because of the possible large correlations generated between long and short …

For primordial perturbations, deviations from Gaussian statistics on the tail of the probability
distribution can be associated with non-perturbative effects of inflation. In this paper, we …

If the inflaton gets trapped in a local minimum of its potential shortly before the end of
inflation, it escapes by building up quantum fluctuations in a process known as stochastic …

We present a non-perturbative method for calculating the abundance of primordial black
holes given an arbitrary one-point probability distribution function for the primordial …

There is controversy surrounding the origin and evolution of our universe's largest
supermassive black holes (SMBHs). In this study, we consider the possibility that some of …

A bstract In this paper, we revisit the infrared (IR) divergences in de Sitter (dS) space using
the wavefunction method, and explicitly explore how the resummation of higher-order loops …

Stochastic inflation resolves primordial perturbations nonlinearly, probing their probability
distribution deep into its non-Gaussian tail. The strongest perturbations collapse into …

It is generally assumed within the standard cosmological model that initial density
perturbations are Gaussian at all scales. However, primordial quantum diffusion …