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A: Fachverband Atomphysik

A 15: Poster I

A 15.30: Poster

Dienstag, 12. März 2024, 17:00–19:00, Tent A

Light-induced correlations in cold dysprosium atoms — •Marvin Proske, Ishan Varma, Rhuthwik Sriranga, 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 onto 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 progess made in generating extremely dense cold dysprosium clouds. We discuss the measures taken to optically transport the atoms into a home-built science cell, which serves as a highly accessible platform to manipulate the atomic cloud. The small dimensions of the cell allow for extremely tight dipole trapping, enabled by a self-designed high NA objective. Further, we give a perspective on future measurements exploring collective effects in the generated atom cloud.

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