Quantum Droplets of Dipolar Mixtures

Recently achieved two-component dipolar Bose-Einstein condensates open exciting possibilities for the study of mixtures ultra-dilute quantum liquids. While non-dipolar self-bound are necessarily miscible with an approximately fixed ratio between two densities, density case is free. As a result, present qualitatively novel and much richer physics, characterized by three possible ground-state phases: miscible, symmetric immiscible asymmetric immiscible, which may in principle occur at any population imbalance. Self-bound droplets due to mutual non-local inter-component attraction, results formation droplet molecule. Moreover, our analysis impurity regime, shows that fluctuations majority component crucially modify miscibility impurities. Our work opens intriguing perspectives exploration spinor physics liquids, should resemble some extent 4He-3He impurity-doped helium droplets.