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Onset of a modulational instability in trapped dipolar Bose-Einstein condensates
Igor Ferrier-Barbut, Matthias Wenzel, Matthias Schmitt +2
We explore the phase diagram of a finite-sized dysprosium dipolar Bose-Einstein condensate in a cylindrical harmonic trap. We monitor the final state after the scattering length is…
Liquid quantum droplets of ultracold magnetic atoms
Igor Ferrier-Barbut, Matthias Schmitt, Matthias Wenzel +2
The simultaneous presence of two competing inter-particle interactions can lead to the emergence of new phenomena in a many-body system. Among others, such effects are expected in…
Self-bound droplets of a dilute magnetic quantum liquid
Matthias Schmitt, Matthias Wenzel, Fabian Böttcher +2
Self-bound many-body systems are formed through a balance of attractive and repulsive forces and occur in many physical scenarios. Liquid droplets are an example of a self-bound sy…
Observation of quantum droplets in a strongly dipolar Bose gas
Igor Ferrier-Barbut, Holger Kadau, Matthias Schmitt +2
Quantum fluctuations are the origin of genuine quantum many-body effects, and can be neglected in classical mean-field phenomena. Here we report on the observation of stable quantu…
Observing the Rosensweig instability of a quantum ferrofluid
Holger Kadau, Matthias Schmitt, Matthias Wenzel +4
Ferrofluids show unusual hydrodynamic effects due to the magnetic nature of their constituents. For increasing magnetization a classical ferrofluid undergoes a Rosensweig instabili…
Emergence of chaotic scattering in ultracold Er and Dy
T. Maier, H. Kadau, M. Schmitt +13
We show that for ultracold magnetic lanthanide atoms chaotic scattering emerges due to a combination of anisotropic interaction potentials and Zeeman coupling under an external mag…
Broad universal Feshbach resonances in the chaotic spectrum of Dysprosium atoms
Thomas Maier, Igor Ferrier-Barbut, Holger Kadau +6
We report on the observation of weakly-bound dimers of bosonic Dysprosium with a strong universal s-wave halo character, associated with broad magnetic Feshbach resonances. These s…
Narrow-line magneto-optical trap for dysprosium atoms
T. Maier, H. Kadau, M. Schmitt +2
We present our technique to create a magneto-optical trap for dysprosium atoms using the narrow-line cooling transition at 626nm to achieve suitable conditions for direct loadi…