An extension of the nonadiabatic quantum molecular dynamics approach is presented to account for electron-nuclear correlations in the dynamics of atomic many-body systems. The method combines electron dynamics described within time-dependent density-functional or Hartree-Fock theory with trajectory-surface-hopping dynamics for the nuclei, allowing us to take into account explicitly a possible external laser field. As a case study, a model system of H++H collisions is considered where full quantum-mechanical calculations are available for comparison. For this benchmark system the extended surface-hopping scheme exactly reproduces the full quantum results. Future applications are briefly outlined.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa.de:bsz:14-qucosa-151796 |
| Date | 09 September 2014 |
| Creators | Fischer, Michael, Handt, Jan, Schmidt, Rüdiger |
| Contributors | Technische Universität Dresden, Fakultät Mathematik und Naturwissenschaften, The American Physical Society, |
| Publisher | Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:article |
| Format | application/pdf |
| Source | PHYSICAL REVIEW A, Bd. 90 (2014), Nr. 1, S. 012526, ISSN: 1094-1622 |
Page generated in 0.0024 seconds