Measurement of a large chemical reaction rate between ultracold closed-shell 40Ca atoms and open-shell 174Yb+ ions held in a hybrid atom-ion trap.

摘要: Ultracold $^{174}\mathrm{Yb}^{+}$ ions and $^{40}\mathrm{Ca}$ atoms are confined in a hybrid trap. The charge exchange chemical reaction rate constant between these two species is measured found to be 4 orders of magnitude larger than recent measurements other heteronuclear systems. structure the ${\mathrm{CaYb}}^{+}$ molecule determined used calculation that explains fast as consequence strong radiative transfer. A possible explanation offered for apparent contradiction typical theoretical predictions association process this experiments.