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 …

The experimental and theoretical research of spin–orbit-coupled ultracold atomic gases has
advanced and expanded rapidly in recent years. Here, we review some of the progress that …

Quantum fluctuations can stabilize Bose–Einstein condensates (BEC) against the mean-
field collapse. Stabilization of the condensate has been observed in quantum degenerate …

We study the spectrum of elementary excitations of a dipolar Bose gas in a three-
dimensional anisotropic trap across the superfluid-supersolid phase transition. Theoretically …

Supersolids are exotic materials combining the frictionless flow of a superfluid with the
crystal-like periodic density modulation of a solid. The supersolid phase of matter was …

The concept of a roton, a special kind of elementary excitation forming a minimum of energy
at finite momentum, has been essential for the understanding of the properties of superfluid …

Dipolar condensates have recently been coaxed to form the long-sought supersolid phase.
While one-dimensional supersolids may be prepared by triggering a roton instability, we find …

Pattern formation is a ubiquitous phenomenon observed in nonlinear and out-of-equilibrium
systems. In equilibrium, quantum ferrofluids formed from ultracold atoms were recently …

Collapse in dipolar Bose-Einstein condensates may be arrested by quantum fluctuations.
Due to the anisotropy of the dipole-dipole interactions, the dipole-driven collapse induced by …

We consider the ground state properties of a trapped dipolar condensate under the
influence of quantum fluctuations. We show that this system can undergo a phase transition …