From the Wavefunction of the Universe to In-In-Correlators: A Perturbative Map to All Orders
The episode discusses a paper mapping observables from the Wavefunction of the Universe approach to Schwinger–Keldysh in-in formalism using order-by-order diagrams. The hosts explain how this map simplifies calculations, provides a unified theoretical pathway connecting quantum field theory and cosmological data, and suggests practical improvements for analyzing real-world observational data.