Browsing by Author "Zunckel, Caroline L"

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    Cosmological magnetogenesis
    (2005) Zunckel, Caroline L; Dunsby, Peter
    In this thesis, second-order gauge-invariant perturbation theory is used to develop a selfconsistent framework in which the non-linear coupling between inflationary gravitational waves and a large-scale magnetic field is investigated, as means of amplifying the field to within the strength limits required to support the galactic dynamo. For the purpose of performing an entirely gauge-invariant analysis, the seed field and the gravitational wave spectrum are treated as small perturbations of a Friedmann-Lemaitre-Robertson-Walker (FLRW) background.