Rydberg Atoms in "Circular" States
Hulet, Randall G.
The population of a beam of lithium atoms has been transferred from a low angular momentum Rydberg state to a state with |m|=n−1, with nearly 100% efficiency. Selective field ionization is employed to detect the high |m| state. Transfer occurs by a series of adiabatic rapid passages; it can also occur by a single multiphoton process.