We demonstrate that, contrary to common wisdom, genuine multipartite entanglement (GME) can be abundantly generated from simple non-correlated many-electron states. We show that the extracted GME can be maximized via spin-independent transformations derived from the quantum Fourier transform. We further demonstrate the possibility of maximizing the GME through localized orbitals in a variety of realistic systems and correlated states. Towards the exploitation of potentially useful entanglement, we rationalize system-specific and universal features of the extracted GME.
@article{arxiv.2410.11314,
title = {Genuine multipartite entanglement from many-electron systems},
author = {Filippo Troiani and Celestino Angeli and Andrea Secchi and Stefano Pittalis},
journal= {arXiv preprint arXiv:2410.11314},
year = {2025}
}