In a new study published in Physical Review Letters, a team from the Nägerl group, together with theory collaborator Alvise Bastianello from the CNRS and the Université Paris-Dauphine, demonstrates that highly unusual quantum states known as "fractional Fermi seas" can be quantum engineered.
Source: [Phys.org](https://phys.org/news/2026-06-equilibrium-cesium-atoms-reveal-fractional.html)