Droplet-superfluid compounds in binary bosonic mixtures

While quantum fluctuations in binary mixtures of bosonic atoms with short-range interactions can lead to the formation a self-bound droplet, for equal intracomponent but an unequal number two components, there is excess part that cannot bind droplet. Imposing confinement, as here through periodic boundary conditions one-dimensional setting, droplet becomes amalgamated residual condensate. The rotational properties this compound system reveal simultaneous rigid-body and superfluid behavior ground state uncover condensate carry angular momentum even absence vorticity. In contradiction intuitive idea fraction would be entirely made up not bound by we find evidence higher than what one expect such picture. Our findings are corroborated analysis elementary excitations system, shed new light on coexistence localization superfluidity.