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  • Letter

Genuine multipartite entanglement from many-electron systems

Filippo Troiani1,*, Celestino Angeli2, Andrea Secchi1, and Stefano Pittalis1

  • *Contact author: filippo.troiani@nano.cnr.it

Phys. Rev. B 111, L161110 – Published 10 April, 2025

DOI: https://doi.org/10.1103/PhysRevB.111.L161110

Abstract

We demonstrate that, contrary to common wisdom, genuine multipartite entanglement (GME) can be abundantly generated from simple noncorrelated 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.

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