• Oct 28 2013

    WITS Node Seminar: Prof Peter Dunsby (UCT)

    The National Institute for Theoretical Physics, and the Centre for Theoretical Physics, School of Physics, would like to invite to its coming talk in the theory seminar series, entitled:

    "Is the Concordance Model the only game in town?"

    to be presented by Prof. Peter Dunsby (University of Cape Town)

    Abstract: Although the standard Concordance Model of cosmology model continues to provide the best fit to all available cosmological data, understanding the physical origin of late time acceleration continues to be one of the major theoretical challenges of contemporary cosmology. In this talk I will review some recent work, which aims to provide two distinct alternatives to the LCDM description of the Universe. The first maintains the standard Friedmann-Robertson-Walker geometry, but modifies the gravitational interaction, while the second retains General Relativity as the theory of gravity, but instead modifies the underlying space-time geometry and as a consequence provides a test of the Copernican Principle. Both of these alternatives can be shown to work to some degree, but there remain major theoretical obstacles to be solved before one can claim to have found a worthy challenger to the standard model.

    Date: Friday, 28th October 2011
    Venue: Frank Nabarro Lecture Theatre P216
    Time: 13.20 - 14.10

    For more information:

    Alan S. Cornell

    School of Physics
    University of the Witwatersrand
    Private Bag 3
    Wits 2050
    South Africa