Please contact divya.singh@berkeley.edu, tianqi.zhao@berkeley.edu, or klund@berkeley.edu for zoom links.

Motivated by open questions such as the matter-antimatter asymmetry, the dark sector, and a quantum theory of gravity, I will talk about theories beyond the standard cosmological and gravitational paradigms, in particular the theoretical and observational prospects of such theories. First, I will explain a parameterization I developed to use gravitational waves for constraining a wide class of theories beyond general relativity in explicitly parity-violating and parity-invariant contributions. Such theories can contain candidates for the dark sector, including axions, Kalb-Ramond dark matter, U(1) vector fields, and the dilaton. Then, I will discuss how a general class of spontaneous baryogenesis models, which involve a scalar field coupled to a baryon current, may satisfy cosmological isocurvature constraints under certain conditions.