Waltner, Daniel and Gutierrez, Martha and Goussev, Arseni and Richter, Klaus (2008) Semiclassical Mechanism for the Quantum Decay in Open Chaotic Systems. PHYSICAL REVIEW LETTERS, 101 (17): 174101. ISSN 0031-9007,
Full text not available from this repository.Abstract
We address the decay in open chaotic quantum systems and calculate semiclassical corrections to the classical exponential decay. We confirm random matrix predictions and, going beyond, calculate Ehrenfest time effects. To support our results we perform extensive numerical simulations. Within our approach we show that certain (previously unnoticed) pairs of interfering, correlated classical trajectories are of vital importance. They also provide the dynamical mechanism for related phenomena such as photoionization and photodissociation, for which we compute cross-section correlations. Moreover, these orbits allow us to establish a semiclassical version of the continuity equation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | WEAK-LOCALIZATION; SCATTERING; BILLIARDS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Oct 2020 09:53 |
| Last Modified: | 21 Oct 2020 09:53 |
| URI: | https://pred.uni-regensburg.de/id/eprint/30167 |
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