Szapudi István (University of Hawaii)

N-Body Simulations and Cosmological Statistics

Az előadás kivonata: I will review two recent techniques for cosmological N-body simulations. The StePS simulations use a stereographic projection to compactify the universe and fit it into a finite computer. The resulting multiresolution technique is more efficient than standard zoom-in simulations and has isotropic gravity. Complementary simulations augment an existing simulation by minimizing cosmic variance by orders of magnitude without running thousands of additional realizations. These advanced non-linear dynamical models pair with novel statistical techniques such as sufficient statistics and indicator power spectra to extract more information from cosmological surveys, such as the recently launched Euclid.

Az előadóról:

• Személyes oldal
• Curriculum vitae