Approximate dynamical symmetry of hydrogen atoms in circularly polarized microwave fields
Journal
Physical Review A
Journal Volume
50
Journal Issue
6
Pages
5077-5080
Date Issued
1994
Author(s)
Rakovic´, M.J.
Abstract
We report the discovery of an integrable three-dimensional Hamiltonian system with a velocity-dependent potential. A two-dimensional restriction of that system is (for low frequencies) a good approximation of the motion (in the polarization plane) of the hydrogen atom in circularly polarized microwave fields. An additional integral of motion of the integrable two-dimensional system (being approximate invariant for the hydrogen atom in a circular field) is used in the calculation of the classical ionization field threshold. The result is consistent with all available experimental observations.
SDGs
Type
journal article