Quantum droplet states of a binary magnetic gas

TL;DR

This paper develops an extended meanfield theory to predict the properties of quantum droplets in binary magnetic gases, revealing phase behavior and potential experimental realizations with lanthanide atom mixtures.

Contribution

It introduces a new theoretical framework for understanding quantum droplets in binary magnetic gases, including phase diagrams and binding mechanisms.

Findings

Identification of equilibrium and dynamical properties of BMG droplets

Characterization of miscible and immiscible droplet states

Proposal for experimental realization with lanthanide atom mixtures

Abstract

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 meanfield 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 be used to bind another magnetic component which is not in the droplet regime. Our results should be realizable in experiments with mixtures of highly-magnetic lanthanide atoms.