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arXiv · 2410.11314

Genuine multipartite entanglement from many-electron systems

Filippo Troiani·Celestino Angeli·Andrea Secchi·Stefano Pittalis
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Abstract

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.

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Filippo Troiani, Celestino Angeli, Andrea Secchi, Stefano Pittalis. 2024-10-15. Genuine multipartite entanglement from many-electron systems. https://doi.org/10.1103/physrevb.111.l161110

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