Hannover 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

A: Fachverband Atomphysik

A 16: Interaction with strong or short laser pulses I

A 16.7: Vortrag

Mittwoch, 11. März 2020, 12:45–13:00, a320

Relativistic analytical model of multi-electron atoms — •Kamil D Dzikowski, Oleg D Skoromnik, Natalia S Oreshkina, and Christoph H Keitel — Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany

We develop a fully relativistic analytical model for computation of observable characteristics of multi-electron atoms and ions. We employ a complete hydrogen-like basis with an effective nuclear charge parameter for the construction of a perturbation series in the secondary-quantized representation. We study the accuracy of the leading-order approximation for the total binding energies, electron densities, atomic scattering factors and spectra of highly charged ions. The accuracy of calculated characteristics is comparable with the one obtained via advanced numerical solutions of Hartree-Fock equations and thus can replace semi-classical models like the Thomas-Fermi-Dirac model for all applications where they are still utilized.