Considering the hurdles of experiments with more than one atomic species, the temptation arises of rephrasing Arthur L. Schawlow: "Double-species Bose-Einstein condensates are condensates with one species too many". We think otherwise. Quantum mixtures allow the investigation of a wealth of genuinely quantum phenomena: mixed phases of superfluids and Mott insulators, impurities and polarons, chemistry at zero-temperature.

Capillary instability observed in a quantum mixture

Our new article has been published in PRL and has received the Editors' Suggestion!

 

L. Cavicchioli et al.
Dynamical Formation of Multiple Quantum Droplets in a Bose-Bose Mixture
Phys. Rev. Lett. ,134, 093401 (2025)