Event

The physics of the early universe is reflected in the analytic structure of cosmological correlators. Recent years have seen substantial progress in their study, fueled by a novel theoretical approach. In this new approach, cosmological correlators are directly determined from basic physical principles such as locality, unitarity, and symmetry, bypassing the intricacies of the Lagrangian formalism and Feynman diagrams. Key to this advancement is the integration with insights from high energy physics, especially the modern study of scattering amplitudes and conformal field theory (CFT).

In this talk, I will provide an overview of the foundational ideas behind this “cosmological bootstrap” program, highlight some of the latest developments, and discuss future directions of the program.