Starting from the matrix elements of a nucleon-nucleon potential operator provided in a basis of spherical harmonic oscillator functions, we present an algorithm for expressing a given potential operator in terms of irreducible tensors of the SU(3) and SU(2) groups. Further, we introduce a GPU-based implementation of the latter and investigate its performance compared with a CPU-based version of the same. We find that the CUDA implementation delivers speedups of 2.27x - 5.93x.
Publication Source (Journal or Book title)
Discrete and Continuous Dynamical Systems - Series S
Oberhuber, T., Dytrych, T., Launey, K., Langr, D., & Draayer, J. (2021). Transformation of a nucleon-nucleon potential operator into its su(3) tensor form using GPUS. Discrete and Continuous Dynamical Systems - Series S, 14 (3), 1111-1122. https://doi.org/10.3934/dcdss.2020383