Abstract
On the basis of exact quantum mechanical calculations we study energy-level spectra and photoabsorption cross sections for a hydrogen atom in a uniform magnetic field. In the classically chaotic region near the threshold the level distributions show the irregular pattern predicted by randommatrix theories; on the other hand, the photoabsorption spectra show not only the traditional quasi-Landau modulations but also new and unexpected modulations which may be related to classical periodic orbits embedded in a chaotic system.
| Original language | English |
|---|---|
| Pages (from-to) | 571-574 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 57 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1986 |