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

A: Fachverband Atomphysik

A 9: Ultra-cold atoms, ions and BEC (with Q)

A 9.40: Poster

Montag, 29. Februar 2016, 16:30–19:00, Empore Lichthof

Fermi-Fermi Mixtures of Dysprosium and Potassium — Cornee Ravensbergen², Slava Tzanova¹, Vincent Corre², •Marian Kreyer¹, Alexander Werlberger¹, and Rudolf Grimm^1,2 — ¹Intitut für Experimentalphysik, Universität Innsbruck, Austria — ²Institut für Quantenoptik und Quanteninformation IQOQI, Innsbruck, Austria

Ultracold Fermi-Fermi mixtures with tunable interactions represent an intriguing test bed for exploring the physics of strongly interacting many-body quantum systems and few-body quantum states. Two-species Fermi gases extend the variety of phenomena thanks to mass imbalance. Mixtures of a fermionic isotope of dysprosium (¹⁶¹Dy or ¹⁶³Dy) and the fermionic ⁴⁰K provide a mass ratio of about four, which is big enough to experience strong asymmetries while avoiding losses from Efimov states. Furthermore, the large magnetic moment of dysprosium offers an additional feature to study anisotropic effects. In our experimental setup, we have implemented a Zeeman slower for dysprosium and a 2D magneto-optical trap (2D-MOT) for potassium to load a two-species MOT in the main vacuum chamber. It is planned to load both clouds into a dipole trap for evaporative cooling to achieve degeneracy of both species.