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Short-range quantum magnetism of ultracold fermions in an optical lattice
Daniel Greif, Thomas Uehlinger, Gregor Jotzu +2
The exchange coupling between quantum mechanical spins lies at the origin of quantum magnetism. We report on the observation of nearest-neighbor magnetic spin correlations emerging…
Superfluidity with disorder in a quantum gas thin film
Sebastian Krinner, David Stadler, Jakob Meineke +2
We investigate the properties of a strongly interacting, superfluid gas of 6Li2 Feshbach molecules forming a thin film confined in a quasi two-dimensional channel with a tunable ra…
Cold atoms in cavity-generated dynamical optical potentials
Helmut Ritsch, Peter Domokos, Ferdinand Brennecke +1
We review state-of-the-art theory and experiment of the motion of cold and ultracold atoms coupled to the radiation field within a high-finesse optical resonator in the dispersive…
Observing the Drop of Resistance in the Flow of a Superfluid Fermi Gas
David Stadler, Sebastian Krinner, Jakob Meineke +2
In this work, we investigate the conduction properties of strongly interacting fermions flowing through a quasi two-dimensional, multimode channel, which connects two atomic reserv…
Double transfer through Dirac points in a tunable honeycomb optical lattice
Thomas Uehlinger, Daniel Greif, Gregor Jotzu +4
We report on Bloch-Zener oscillations of an ultracold Fermi gas in a tunable honeycomb lattice. The quasi-momentum distribution of the atoms is measured after sequentially passing…
Conduction of Ultracold Fermions Through a Mesoscopic Channel
Jean-Philippe Brantut, Jakob Meineke, David Stadler +2
In a mesoscopic conductor electric resistance is detected even if the device is defect-free. We engineer and study a cold-atom analog of a mesoscopic conductor. It consists of a na…