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PIRSA:13070018

Video URL

https://pirsa.org/13070018

How much information is there in large scale structure?

          @misc{ scivideos_PIRSA:13070018,
            doi = {10.48660/13070018},
            url = {https://pirsa.org/13070018},
            author = {},
            keywords = {},
            language = {en},
            title = {How much information is there in large scale structure?},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {jul},
            note = {PIRSA:13070018 see, \url{https://scivideos.org/index.php/pirsa/13070018}}
          }
Talk numberPIRSA:13070018
DOI10.48660/13070018
Source RepositoryPIRSA
Collection
Talk Type Conference

Abstract

Large scale structure contains vastly more Fourier modes than the CMB, and is therefore a promising arena for studying the early universe.  One obstacle to using these modes is the non-linearity of structure formation. The amount of weakly coupled information available is therefore very sensitive to scale at which non-linear effects become important and simulations become necessary.  Using effective field theory techniques, I will present evidence that the perturbative description of dark matter is much better behaved than previously thought.  I will discuss the implications for improving constraints on non-gaussian initial conditions.