725 citations · 3.4k across the 14 of their papers we have counts for
14 papers
The low-energy Goldstone mode in a trapped dipolar supersolid
Mingyang Guo, Fabian Böttcher, Jens Hertkorn +5
A supersolid is a counter-intuitive state of matter that combines the frictionless flow of a superfluid with the crystal-like periodic density modulation of a solid. Since the firs…
Dilute dipolar quantum droplets beyond the extended Gross-Pitaevskii equation
Fabian Böttcher, Matthias Wenzel, Jan-Niklas Schmidt +8
Dipolar quantum droplets are exotic quantum objects that are self-bound due to the subtle balance of attraction, repulsion and quantum correlations. Here we present a systematic st…
Transient supersolid properties in an array of dipolar quantum droplets
Fabian Böttcher, Jan-Niklas Schmidt, Matthias Wenzel +4
We study theoretically and experimentally the emergence of supersolid properties in a dipolar Bose-Einstein condensate. The theory reveals a ground state phase diagram with three d…
A fermionic impurity in a dipolar quantum droplet
Matthias Wenzel, Tilman Pfau, Igor Ferrier-Barbut
In this article we develop the framework to describe Bose-Fermi mixtures of magnetic atoms, focusing on the interaction of bosonic self-bound dipolar quantum droplets with a small…
Anisotropic Superfluid Behavior of a Dipolar Bose-Einstein Condensate
Matthias Wenzel, Fabian Böttcher, Jan-Niklas Schmidt +4
We present transport measurements on a dipolar superfluid using a Bose-Einstein condensate of Dy-162 with strong magnetic dipole-dipole interactions. By moving an attractive laser…
Scissors mode of dipolar quantum droplets of dysprosium atoms
Igor Ferrier-Barbut, Matthias Wenzel, Fabian Böttcher +4
We report on the observation of the scissors mode of a single dipolar quantum droplet. The existence of this mode is due to the breaking of the rotational symmetry by the dipole-di…
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…
Striped states in a many-body system of tilted dipoles
Matthias Wenzel, Fabian Böttcher, Tim Langen +2
We study theoretically and experimentally the behaviour of a strongly confined dipolar Bose-Einstein condensate, in the regime of quantum-mechanical stabilization by beyond-mean-fi…
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…