Guiding center drift atoms

Very weakly bound electron-ion pairs in a strong magnetic field are called guiding center drift atoms, since the electron dynamics can be treated by guiding center drift theory. Over a wide range of weak binding, the coupled electron-ion dynamics for these systems is integrable. This paper discusses the dynamics, including the important cross magnetic field motion of an atom as a whole, in terms of the system constants of the motion. Since the dynamics is quasi-classical, quantum numbers are assigned using the Bohr–Sommerfeld rules. Antimatter versions of these guiding center drift atoms likely have been produced in recent experiments.