Light-assisted cold chemical reactions of barium ions with rubidium atoms

摘要: Light-assisted reactive collisions between laser-cooled Ba+ ions and Rb atoms were studied in an ion–atom hybrid trap. The reaction rate was found to strongly depend on the electronic state of partners with largest constant [7(2) × 10−11 cm3 s−1] obtained for excited Ba+(6s)+Rb(5p) channel. Similar previously Ca++Rb system, charge transfer radiative association be dominant processes. generation molecular by could directly observed their sympathetic cooling into a Coulomb crystal. Potential energy curves up asymptote reactive-scattering cross sections processes calculated. theoretical lowest channel Ba+(6s)+Rb(5s) is compatible experimental estimates thus far.