Researchers at Monash University have predicted an unusual new form of quantum matter that could overturn long-held assumptions about how ultracold particles behave.

Their calculations suggest that, under the right conditions, two fundamentally different classes of quantum particles -- bosons and fermions -- can combine to create stable, self-bound "quantum droplets." Scientists had previously considered such droplets unlikely to form in strongly interacting Bose-Fermi systems.

The findings offer researchers a new theoretical framework for future experiments and could improve scientists' understanding of quantum materials relevant to emerging technologies, including ultra-precise sensors and quantum computing.

A Quantum Droplet That Holds Itself Together

Lead author and Monash PhD candidate Sam Foster from the School of Physics and Astronomy said the results create opportunities to investigate entirely new quantum states.