Cutting Cosmological Correlators


Goodhew, H. (2022). Cutting Cosmological Correlators. Perimeter Institute. https://pirsa.org/22120060


Goodhew, Harry. Cutting Cosmological Correlators. Perimeter Institute, Dec. 05, 2022, https://pirsa.org/22120060


          @misc{ pirsa_22120060,
            doi = {10.48660/22120060},
            url = {https://pirsa.org/22120060},
            author = {Goodhew, Harry},
            keywords = {Cosmology},
            language = {en},
            title = {Cutting Cosmological Correlators},
            publisher = {Perimeter Institute},
            year = {2022},
            month = {dec},
            note = {PIRSA:22120060 see, \url{https://pirsa.org}}

Harry Goodhew University of Cambridge


The initial conditions of our universe appear to us in the form of a classical probability distribution that we probe with cosmological observations. In the current leading paradigm, this probability distribution arises from a quantum mechanical wavefunction of the universe. In this talk I will discuss how we can adapt flat space bootstrapping techniques to the quantum fluctuations in the early universe, in particular showing that the requirement of unitary time evolution, colloquially the conservation of probabilities, fixes the analytic structure of the wavefunction and of all the cosmological correlators it encodes.

Zoom link:  https://pitp.zoom.us/j/95812107239?pwd=bVZMcWdHTVM0Y0tFZGMxS2FCVGF0Zz09