Two levels are great for qubits, but molecules can take it to the next level — currently 112 of them, to be exact.

We've controlled this complexity to realize laser cooling of previously intractable fermionic 137BaF molecules, to our knowledge the most complex molecule laser-cooled to date. 

This sets the stage for sensitive tests of parity violation and the Standard Model of particle physics using these molecules!

Article (open access): https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.7.L022041, öffnet eine externe URL in einem neuen Fenster

Great work by lead author Felix Kogel, who also theoretically proposed the cooling scheme for such molecules four years earlier (https://iopscience.iop.org/article/10.1088/1367-2630/ac1df2, öffnet eine externe URL in einem neuen Fenster), as well as by Tatsam Garg and Marian Rockenhäuser