PIRSA:13090063

Not so random walks in cosmology

Sheth, R. (2013). Not so random walks in cosmology. Perimeter Institute. https://pirsa.org/13090063

Sheth, Ravi. Not so random walks in cosmology. Perimeter Institute, Sep. 24, 2013, https://pirsa.org/13090063 

          @misc{ pirsa_PIRSA:13090063,
            doi = {10.48660/13090063},
            url = {https://pirsa.org/13090063},
            author = {Sheth, Ravi},
            keywords = {Cosmology},
            language = {en},
            title = {Not so random walks in cosmology},
            publisher = {Perimeter Institute},
            year = {2013},
            month = {sep},
            note = {PIRSA:13090063 see, \url{https://pirsa.org}}
          }

Ravi Sheth University of Pennsylvania

DOI 10.48660/13090063
Collection
Talk Type Scientific Series
Subject

Abstract

I'll discuss a number of insights into the process of nonlinear structure formation which come from the study of random walks crossing a suitably chosen barrier.  These derive from a number of new results about walks with correlated steps, and include a unified framework for the peaks and excursion set frameworks for estimating halo abundances, evolution and clustering, as well as nonlinear, nonlocal and stochastic halo bias, all of which matter for the next generation of large scale structure datasets.