Abstract
We examine the excitation of continuum-state resonances close to the threshold, paying particular attention to the breakdown of the Markov approximation and the consequences of this for initial-state time dependences and final-state spectra. Several theoretical dressed-state alternative descriptions are analyzed and compared: the nonperturbative coupling of a discrete state to a structured continuum with a threshold, the complete Fano diagonalization of the interacting system, and finally a partial diagonalization of the bound-state couplings to reveal the origin of dressed-state stabilization and partial decay suppression observed in this model.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 6296-6312 |
| Number of pages | 17 |
| Journal | Physical Review A |
| Volume | 41 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1990 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics