Cosmological Correlators: A Boundary View

This lecture by the instructor explores the study of cosmological correlators, focusing on the boundary view approach. Topics covered include the role of inflation in understanding early-universe cosmology, the encoding of local physics on the future asymptotic boundary, and the challenges in computing signals from inflation. The lecture delves into the cosmological bootstrap, the S-matrix bootstrap, and the cosmological wavefunctional in perturbation theory. It also discusses the constraints imposed by de Sitter symmetry and conformal symmetry on correlators, as well as the implications for understanding high energy physics and the UV-IR connection in cosmology.