PIRSA:15110081

Beyond the CMB: The Effective Field Theory of Large Scale Structure

Perko, A. (2015). Beyond the CMB: The Effective Field Theory of Large Scale Structure. Perimeter Institute. https://pirsa.org/15110081

Perko, Ashley. Beyond the CMB: The Effective Field Theory of Large Scale Structure. Perimeter Institute, Nov. 17, 2015, https://pirsa.org/15110081 

          @misc{ pirsa_PIRSA:15110081,
            doi = {10.48660/15110081},
            url = {https://pirsa.org/15110081},
            author = {Perko, Ashley},
            keywords = {Cosmology},
            language = {en},
            title = {Beyond the CMB: The Effective Field Theory of Large Scale Structure},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {nov},
            note = {PIRSA:15110081 see, \url{https://pirsa.org}}
          }

Ashley Perko

Stanford University

Talk number
PIRSA:15110081
Collection
Talk Type
Subject
Abstract

The next hope to constrain cosmological parameters observationally is in surveys of the large scale structure (LSS) of the universe. LSS has the potential to rival the CMB in cosmological constraints because the number of modes scales like the volume, but the nonlinear clustering due to gravity makes it more difficult to extract primordial parameters. In order to take full advantage of the constraining power of LSS, we must understand it in the quasi-nonlinear regime. The effective field theory (EFT) of LSS provides a consistent way to perturbatively predict the clustering of matter at large distances. In this talk, I will discuss the status of the EFT of LSS and present recent work describing the inclusion of baryons in the EFT approach, including comparisons to N-body simulations.