SAMOP 2023 – scientific programme
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A: Fachverband Atomphysik
A 19: Ultra-cold Atoms, Ions and BEC III (joint session A/Q)
A 19.6: Talk
Wednesday, March 8, 2023, 15:45–16:00, F428
Light-induced correlations in cold dysprosium atoms — •Marvin Proske1, Ishan Varma1, Nivedith Anil1, Dimitra Cristea1, Nico Bassler2, Claudiu Genes2,3, Kai Philipp Schmidt2, and Patrick Windpassinger1 — 1Institut für Physik, JGU Mainz — 2Department of Physics, FAU Erlangen-Nuremberg — 3MPI for the Science of Light, Erlangen
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 talk 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.