@article{13276,
  abstract     = {<jats:p>We introduce a generic and accessible implementation of an exact diagonalization method for studying few-fermion models. Our aim is to provide a testbed for the newcomers to the field as well as a stepping stone for trying out novel optimizations and approximations. This userguide consists of a description of the algorithm, and several examples in varying orders of sophistication. In particular, we exemplify our routine using an effective-interaction approach that fixes the low-energy physics. We benchmark this approach against the existing data, and show that it is able to deliver state-of-the-art numerical results at a significantly reduced computational cost.</jats:p>},
  author       = {Rammelmüller, Lukas and Huber, David and Volosniev, Artem},
  issn         = {2949-804X},
  journal      = {SciPost Physics Codebases},
  publisher    = {SciPost Foundation},
  title        = {{A modular implementation of an effective interaction approach for harmonically trapped fermions in 1D}},
  doi          = {10.21468/scipostphyscodeb.12},
  year         = {2023},
}