Quantum Droplet States of a Binary Magnetic Gas

Quantum droplets can emerge in bosonic binary magnetic gases (BMGs) from the interplay of short- and long-ranged interactions, and quantum fluctuations. We develop an extended mean field theory for this system and use it to predict equilibrium and dynamical properties of BMG droplets. We present a phase diagram and characterize miscible and immiscible droplet states. We also show that a single-component self-bound droplet can bind another magnetic component, which is not in the droplet regime, due to the interspecies dipole-dipole interactions. Our results should be realizable in experiments with mixtures of highly magnetic lanthanide atoms.

Automated summary

Quantum droplets can emerge in bosonic binary magnetic gases through the interplay of short- and long-ranged interactions, as well as quantum fluctuations. An extended mean field theory was developed to predict the equilibrium and dynamical properties of these droplets, revealing miscible and immiscible droplet states. The study also found that a single-component self-bound droplet can bind another magnetic component due to interspecies dipole-dipole interactions, with implications for experiments using mixtures of highly magnetic lanthanide atoms.