Université de GenèveDépartement de Physique ThéoriqueCAP Genève

General Relativity in Numerical Cosmology

24. April 2013
Cosmology seminar, Universität Göttingen, Germany
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To study the nonlinear regime of cosmic structure formation, Newtonian N-body simulations are an established standard tool. Our aim is to take a first step beyond the Newtonian limit towards a dynamical description of space-time. This will allow one to include intrinsically relativistic sources into the game (e.g. "clustering" dark energy, cosmic strings...) and also to address the issue of backreaction. I will present a perturbative approach which is designed to take into account the most important relativistic effects while maintaining a moderate level of complexity and conceptual challenge. Once the problem is specified, I will discuss strategies for the algorithmic solution and present some preliminary numerical results.


Département de Physique Théorique
Université de Genève
24, quai Ernest Ansermet
1211 Genève 4
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