SAMOP 2023 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 22: Poster II
Q 22.21: Poster
Dienstag, 7. März 2023, 16:30–19:00, Empore Lichthof
Pattern formation and symmetry breaking in a periodically driven 2D BEC — •Nikolas Liebster1, Marius Sparn1, Elinor Kath1, Maurus Hans1, Keisuke Fujii2, Sarah Görlitz2, Helmut Strobel1, Tilman Enss2, and Markus Oberthaler1 — 1Kirchhoff-Institut für Physik, Heidelberg, Germany — 2Institut für Theoretische Physik, Heidelberg, Germany
Dynamical pattern formation is a ubiquitous phenomenon in nature, and has relevance in many fields in physics. The emergence of these patterns, as well as how symmetries are broken, remains an open field of research in quantum physical systems. By periodically driving the scattering length in a 2D potassium-39 Bose-Einstein condensate, we use parametric resonance to non-linearly populate specific momentum modes of trapped condensates. We show the emergence of randomly oriented standing waves with D4 symmetry and investigate the effects of background density distributions on the formation of patterns on the condensate.