Bonn 2025 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

A: Fachverband Atomphysik

A 33: Poster – Collisions, Scattering and Correlation Phenomena (joint session A/MO)

A 33.1: Poster

Donnerstag, 13. März 2025, 17:00–19:00, Tent

Light-induced correlations in cold dysprosium atoms — •Chung-Ming Hung, Ishan Varma, Marvin Proske, Rhuthwik Sriranga, Dimitra Cristea, and Patrick Windpassinger — Institut für Physik, Johannes Gutenberg Universität Mainz

When the average atomic distance in a cloud of ultracold atoms, is below the wavelength of the scattering light, a direct matter-matter coupling is introduced by electric and magnetic interactions. This alters the spectral and temporal response of the sample, where the atoms cannot be treated as individual emitters anymore. We intend to experimentally study light-matter interactions in dense dipolar media with large magnetic moments to explore the impact of magnetic dipole-dipole interactions on the cooperative response of the sample. With the largest ground-state magnetic moment in the periodic table (10 Bohr-magneton), dysprosium is the perfect choice for these experiments. This poster reports on the progress in generating dense, cold dysprosium clouds. We discuss the measures taken to optically transport the atoms into a home-built science cell by utilizing an air-bearing translation stage. The cell compact design allows for tight dipole trapping with a high numerical aperture objective. Finally, an outlook is provided on future measurements aimed at the collective response in the generated sample.

Keywords: Ultracold dipolar gases; Light-matter interaction; Photon scattering