Hannover 2016 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 20: Atomic systems in external fields
A 20.4: Poster
Dienstag, 1. März 2016, 16:30–19:00, Empore Lichthof
Dirac: Computer algebra tools for studying the properties of hydrogen-like atoms — •Jiri Hofbrucker1,2, Andrey Surzhykov1, and Stephan Fritzsche1,2 — 1Helmholtz Institute Jena, Germany — 2University of Jena, Germany
The model of hydrogen-like ions plays a significant role in various research fields such as atomic and molecular physics, plasma physics or astrophysics. Hence, an easy access to the analytical as well as numerical properties of the model is of the interest of a wide community of researchers. Here, we present an updated and extended Mathematica version of the algebraic software DIRAC, which aims to provide the user with interactive tools for studying the properties of hydrogen-like atoms. Apart from the original procedures[1][2] including the Coulomb-field solutions to the Schroedinger and Dirac equations, Greens functions and radial integrals, this version adds on a number of high level procedures to describe the total and angular differential cross sections for the interaction of radiation with hydrogen-like atoms. Moreover, the documentation centre for this package has been updated to deliver a clear description of individual functions in order to offer a user friendly environment of the DIRAC package. [1] A. Surzhykov, P. Koval, S. Fritzsche, Comput. Phys. Comm. 165 (2005) 139. [2] S. McConnell, S. Fritzsche, A. Surzhykov, Comput. Phys. Comm. 181 (2010) 711-713