Speaker: István Szapudi (University of Hawaii)
Title: Stereographically Compactified Simulations (StePS) for cosmology
Date: 15 September, at 2 p.m.
Place: KFKI Campus, Bldg. 1, Conference room, and also in Zoom
Abstract:
StePS (STEreographically Projected cosmological Simulations) framework uses a compactification technique to simulate the whole universe. At present it is capable of four topologies: standard torus (periodic boundary conditions), spherical (trivial), cylindrical (periodic in the z-direction), and Poincare dodecahedron simulations. The new simulation framework is especially useful for testing alternative models, such as the rotating Godel-inspired universe with cylindrical topology, and for developing observational tests for non-trivial topologies.
CV of the speaker:
István Szapudi is a physicist at the Institute for Astronomy at the University of Hawaii. His work focuses on the statistical analysis of the large-scale structure of the Universe, and he has played a leading role in developing methods that extract as much cosmological information as possible from galaxy surveys; including “counts-in-cells” statistics, the “sufficient-statistics” power spectrum, and precision predictions of the cosmological density distribution. He is also active in other areas, including as an expert in N-body simulations. His scientific works on the rotating universe, the philosophical foundations of quantum mechanics, and space-based climate control have attracted widespread attention. He is a coathor of the book "Spinning the Cosmic Web", published this year.
