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Yoann Levis Launay is a PhD student in the Department of Applied Mathematics and Theoretical Physics at the University of Cambridge. His research focuses on nonlinear general relativity and stochastic inflation, under the supervision of Dr. Paul Shellard and Dr. Gerasimos Rigopoulos. His PhD project seeks to advance early universe theory by exploring the origins of galaxies and the large-scale structure of the universe through the development of stochastic methods that allow for quantitative statistical predictions in inflationary models. His work specifically addresses non-Gaussian signatures in primordial fluctuations caused by the non-linearities produced by general relativity. A significant goal of his research is to analytically and numerically model the nonlinear dynamics of inflation, making predictions about the bispectrum and higher-order correlators that encompass a wider range of inflation scenarios. By utilizing the GRChombo numerical relativity pipeline, he aims to study nonlinear effects using full 3D general relativistic simulations, comparing these results with perturbative analytic expectations derived from effective field theory. Over the years, he has contributed to the DAMTP cosmology group, leading efforts to constrain various models of inflation by utilizing novel separable techniques to analyze bispectra from cosmic microwave background (CMB) observations, particularly from the Planck satellite.
Standard postgraduate requirements for Department of Politics and International Studies (POLIS) and related humanities departments.