Collapse of the Zeeman Structure of the Hydrogen Atom in External Electric Field

摘要

Transition from Zeeman to Stark structure in weakly split Rydberg n-multiplet ofH atom in parallel magnetic and electric fields is analyzed. Classical mechanics together with topological and group theoretical arguments enable us to describe in details the modifications of dynamics under the variation of electric field near the point where the collapse of magnetic Zeeman structure is observed. Sequence of classical bifurcations responsible for the transition between different dynamic regimes is given.