This review aims to offer a pedagogical introduction to the analytic conformal bootstrap
program via a journey through selected topics. We review analytic methods which include …

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 …

The double copy is, in essence, a map between scattering amplitudes in a broad variety of
familiar field and string theories. In addition to the mathematically rich intrinsic structure, it …

We extend the cosmological bootstrap to correlators involving massless particles with spin.
In de Sitter space, these correlators are constrained both by symmetries and by locality. In …

We show that self-dual gravity in Euclidean four-dimensional anti–de Sitter space (AdS 4)
can be described by a scalar field with a cubic interaction written in terms of a deformed …

A bstract Much of the structure of cosmological correlators is controlled by their singularities,
which in turn are fixed in terms of flat-space scattering amplitudes. An important challenge is …

A bstract We develop the embedding formalism for conformal field theories, aimed at doing
computations with symmetric traceless operators of arbitrary spin. We use an indexfree …

A bstract We compute the tree-level late-time graviton four-point correlation function, and the
related quartic wavefunction coefficient, for Einstein gravity in de Sitter spacetime. We derive …

A bstract The wavefunction in quantum field theory is an invaluable tool for tackling a variety
of problems, including probing the interior of Minkowski spacetime and modelling boundary …

We study the analytic properties of tree-level wavefunction coefficients in quasi-de Sitter
space. We focus on theories which spontaneously break dS boost symmetries and can …