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[Fizinfo] Ortvay kollokvium/Ortvay colloquium, 12.10.2023

From: Kormányos Andor <andor.kormanyos AT ttk.elte.hu>
To: "fizinfo AT lists.kfki.hu" <fizinfo AT lists.kfki.hu>, "ttk-fiz-faculty AT listbox.elte.hu" <ttk-fiz-faculty AT listbox.elte.hu>, "ttk-fiz-kutato AT listbox.elte.hu" <ttk-fiz-kutato AT listbox.elte.hu>, "ttk-fiz-emeritus AT listbox.elte.hu" <ttk-fiz-emeritus AT listbox.elte.hu>, "ttk-fiz-postdoc AT listbox.elte.hu" <ttk-fiz-postdoc AT listbox.elte.hu>, "ttk-fiz-phd-hallgatok AT listbox.elte.hu" <ttk-fiz-phd-hallgatok AT listbox.elte.hu>, "ttk-fiz-alkalmazottak AT listbox.elte.hu" <ttk-fiz-alkalmazottak AT listbox.elte.hu>, "zoltan AT astro.columbia.edu" <zoltan AT astro.columbia.edu>, Istvan Szapudi <istvan AT hawaii.edu>
Subject: [Fizinfo] Ortvay kollokvium/Ortvay colloquium, 12.10.2023
Date: Mon, 23 Oct 2023 14:03:01 +0000
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ELTE TTK Fizikai Intézet / ELTE Institute of Physics

ORTVAY KOLLOKVIUM / ORTVAY COLLOQUIUM
(https://physics.elte.hu/ortvayseminar)

Thursday, 26th October 2023, 15:00h.

Pócza Jenő Classroom, Physics Building 1.71

Pázmány Péter sétány 1/A, 1117 Budapest.

István Szapudi

University of Hawai

N-Body Simulations and Cosmological Statistics

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.

Andor Kormányos
coordinator

[Fizinfo] Ortvay kollokvium/Ortvay colloquium, 12.10.2023, Kormányos Andor, 10/09/2023
- <Possible follow-up(s)>
- [Fizinfo] Ortvay kollokvium/Ortvay colloquium, 12.10.2023, Kormányos Andor, 10/23/2023