Science Daily April 28, 2021
For molecules to reach the quantum regime usually requires efficient cooling at high densities, which is frequently hindered by fast inelastic collisions that heat and deplete the population of molecules. An international team of researchers (USA- University of Chicago, China) prepared two-dimensional Bose–Einstein condensates of spinning molecules by inducing pairing interactions in an atomic condensate near a g-wave Feshbach resonance.
The trap geometry and the low temperature of the molecules help to reduce inelastic loss, ensuring thermal equilibrium. They investigated the unpairing dynamics in the strong coupling regime and found that near the Feshbach resonance the dynamical timescale is consistent with the unitarity limit. They linked up a few thousand molecules together in such a state and are beginning to explore its potential…read more. TECHNICAL ARTICLEÂ
Production of g-wave molecular condensate. Credit: Nature volume 592, pages708–711(2021)Â