Published Codes

Most of our research has a computational aspect. Code development is usually performed locally, but sometimes in collaboration with other groups of people.

Here we list our codes that have been officially published.


An open-source research code for solving the Faddeev (AGS) equations to simulate three-nucleon scattering observables. The code is written in C++.

Developed by Sean Miller.

Collaborators: Andreas Ekström and Kai Hebeler.

Published in: Phys. Rev. C 106, 024001 (arXiv:2201.09600)

Code repository:


A no-core shell model code for ab initio nuclear structure calculations. The code is written in C.

Developed by Tor Djärv.

Collaborators: Håkan Johansson, Christian Forssén and Andreas Ekström

Published in: Phys. Rev. C 105, 014005 (arXiv:2108.13313)

Code repository:


An easy-to-install library that evaluates Wigner 3j, 6j and 9j symbols accurately using prime factorisation and multi-word integer arithmetic. The code is written in C and has interfaces for Python, C and Fortran.

Developed by Håkan Johansson and Christian Forssén.

Published in: SIAM J. Sci. Comput. 38.1 (2016): A376-A384 (arXiv:1504.08329)

Code repository: