The pairinteraction software calculates properties of Rydberg systems. Visit the official website at https://pairinteraction.github.io/ for documentation and tutorials. Binary builds are available through GitHub Releases.

For using pairinteraction as a Python 3 library, we recommend the installation via pip by calling pip install pairinteraction. If pairinteraction was installed from the command line, the graphical user interface can be started by executing start_pairinteraction_gui.

Sebastian Weber, Christoph Tresp, Henri Menke, Alban Urvoy, Ofer Firstenberg, Hans Peter Büchler, Sebastian Hofferberth, Tutorial: Calculation of Rydberg interaction potentials, J. Phys. B: At. Mol. Opt. Phys. 50, 133001 (2017), arXiv:1612.08053

The pairinteraction library is licensed under the LGPL v3. The extension for calculating radial wave functions using Whittaker functions and the graphical user interface are licensed under the GPL v3. The GPL v3 also applies to the combined work and all provided binary builds.