Physics
Scientific paper
Jun 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvl..62.2821w&link_type=abstract
Physical Review Letters (ISSN 0031-9007), vol. 62, June 12, 1989, p. 2821-2824. Research supported by DFG.
Physics
56
Atomic Excitations, Crossed Fields, Electric Fields, Hydrogen Atoms, Magnetic Fields, Fourier Transformation, Perturbation Theory, Stark Effect
Scientific paper
The first studies with the hydrogen atom in strong crossed magnetic and electric fields are reported. Long-living states reachig well above the Stark saddle energy are discovered. They are quantitatively explained by second-order perturbation theory, indicating regular, nonchaotic dynamics in these states. Fourier-transformed spectra and classical trajectory calculations indicate the existence of periodic orbits high in the field-ionization regime. Sensitive spectral dependence upon the angle between the fields due to symmetry breaking is observed and accounted for by second-order perturbation theory.
Holle A.
Krueger Katja
Main Joerg
Rottke H.
Wiebusch G.
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