Quantum and semiclassical studies on photodetachment cross sections of H in a harmonic potential
Zhao Hai-Jun1, Liu Wei-Long1, Du Meng-Li2, †,
       

Photodetachment cross section for z polarization (red line) derived from closed orbit theory, compared with the cross sections for x and y polarization (green dashed line), which is also free field cross section. The angular frequency ω of the oscillator is selected to be ω = 0.002.