Speaker
Elisa Soave
(Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria)
Description
We report on the realization of a novel, strongly interacting degenerate Fermi-Fermi mixture, which is a promising system for creating a mass-imbalanced fermionic superfluid. The mixture is brought into the deeply degenerate regime at low magnetic field: A narrow-line laser cooling stage allows for an optimization of the starting conditions for the subsequent evaporative cooling. We found a strong interspecies Feshbach resonance at a magnetic field near 217G. The transfer to high magnetic field requires careful steps, so to minimize losses and heating due to the presence of many narrow Feshbach resonances. On resonance, we reach a temperature of about 50nK: By tuning the population imbalance, superfluidity is in reach.
Primary author
Elisa Soave
(Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria)
Co-authors
Dr
Cornee Ravensbergen
(Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria)
Dr
Vincent Corre
(Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria)
Marian Kreyer
(Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria)
Dr
Emil Kirilov
(Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria)
Prof.
Rudolf Grimm
(Institut für Quantenoptik und Quanteninformation (IQOQI), Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria)
Dr
Jeong Ho Han
(Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria)
