SMuK 2023 – scientific programme

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GR: Fachverband Gravitation und Relativitätstheorie

GR 3: Cosmology II

GR 3.2: Talk

Tuesday, March 21, 2023, 11:45–12:05, HSZ/0401

Universality in cosmic structures — •Matthias Bartelmann — Institut für Theoretische Physik, Universität Heidelberg

Kinetic field theory allows describing cosmic structure formation analytically quite deeply into the non-linear regime of density fluctuations. We have used this theory to investigate several questions concerning the universality of cosmic structures. This talk will focus on three main results, partly obtained within a suitable mean-field approximation: (1) the universality of cosmic structures in the asymptotic small-scale limit; (2) generic effects of modified gravity theories on cosmic structure formation; and (3) possible imprints of the dark-matter model on small-scale cosmic structures.