BEGIN:VCALENDAR VERSION:2.0 PRODID:-//A–Eskwadraat//WSW4 BEGIN:VEVENT DESCRIPTION:
Een dag met lezingen van Stefan Vandoren\, Laura Filion\, Huib de Swart en Raimond Snellings\, met een afsluitende borrel met diner ! En dat allemaal gratis!
Stefan Vandoren - Black Holes\, f rom theory to observation and back.
Black holes are perhap s the most mysterious objects in the universe. It is hard to observe them directly and to describe them theoretically. We review some of their myste rious properties and discuss outstanding challenges for future research. p>
Laura Filion - Hiding in a fluid: Autonomously revealing hidden l ocal structures in colloidal systems.
Developments in machine l earning have opened the door to a new generation of methods for studying p hase transitions\, due to their ability to efficiently and autonomously id entify complex patterns in many-body systems. Applications of machine lear ning techniques in statistical physics vary from locating phase transition s in spin systems to pinpointing weak spots in colloidal glasses. The rapi d emergence of machine learning applications in both statistical mechanics and materials science demonstrates that these techniques are destined to become an important tool for soft matter physics.
One problem this tool seems ideally suited to solve\, both experimentally and in simulation s\, is the identification of different (crystalline) phases – even on th e level of a single particle. For example\, when we use either experiments or simulations to look at crystallization at the microscopic level\, it i s always a challenge to determine which particles are part of the fluid\, and which ones have already crystallized. In this talk I will describe how machine learning techniques can automatically figure this out for us\, ev en if we do not know in advance what crystal structure to look for. We wil l also examine how such methods might reveal new structural insights in purely” disordered systems like glasses.
Huib de Swart - Nonlinear dynamics of tides in coastal and inland seas.
W hen inspecting tidal curves (time series of water level or velocity) of st ations in coastal waters\, it becomes evident that these curves are asymme tric and that the degree of asymmetry differs from location to location. T his asymmetry does not result from direct astronomical forcing\, but it is due to the nonlinear hydrodynamics of tides. In this presentation\, vario us sources of tidal asymmetry will be identified and it will be demonstrat ed\, by using simple mathematical-physical models\, that each of them gene rates a different kind of asymmetry. Finally\, the possibility of multiple tidal attractors and chaotic tides will be touched upon\, as well the imp lications of nonlinear tides for transport of matter and for the formation of bottom patterns.
Raimond Snellings - What are the prope rties of matter at a few trillion degrees?
In heavy-ion co llisions at the CERN Large hadron Collider droplets of extremely hot quark gluon plasma are produced. In this presentation I will give an accessible introduction how we study these smallest and hottest droplets of matter h ere on earth. I will show why this is so interesting for our understanding of the early universe\, the properties of neutron stars and for the lea st understood fundamental force in nature\, the strong force.
(bekijk activiteit) DTSTART:20200312T120000Z DTEND:20200312T190000Z DTSTAMP:20200306T093223Z LOCATION:KBG Cosmos X-ORGANIZER:Medezeggenschap SUMMARY:Natuurkundedepartementsdag UID:8159 URL:https://www.a-eskwadraat.nl/Activiteiten/medezeggenschap/8159/Natuurku ndedepartementsdag END:VEVENT END:VCALENDAR