Since the achievement of quantum degeneracy in gases of chromium atoms in 2004, the
experimental investigation of ultracold gases made of highly magnetic atoms has …

Lanthanide atoms have an unusual electron configuration, with a partially filled shell of f
orbitals. This leads to a set of characteristic properties, including large numbers of optical …

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 …

Ferrofluids exhibit unusual hydrodynamic effects owing to the magnetic nature of their
constituents. As magnetization increases, a classical ferrofluid undergoes a Rosensweig …

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 …

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 …

The control of physical systems and their dynamics on the level of individual quanta
underpins both fundamental science and quantum technologies. Trapped atomic and …

We report on the first realization of heteronuclear dipolar quantum mixtures of highly
magnetic erbium and dysprosium atoms. With a versatile experimental setup, we …

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 …

We observe signatures of radial and angular roton excitations around a droplet
crystallization transition in dipolar Bose-Einstein condensates. In situ measurements are …