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Transport-Noise Witnesses of Electronic Multipartite Entanglement — arXiv:2608.16028

Source: arXiv (en)
Original: https://arxiv.org/abs/2608.16028
License (as archived): CC0-1.0
Archived: 2026-10-19T01:05:24.816Z
SHA-256 of the archived text: d760dcf54b86eb860b5061036d850acb31eb5c608840d7f6f372df0db5280bc4
Stable URL of this page: https://metraipolis.com/documento/dc_bbd48ec3e2e7

How to cite

Transport-Noise Witnesses of Electronic Multipartite Entanglement — arXiv:2608.16028 — arXiv (en), https://arxiv.org/abs/2608.16028 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_bbd48ec3e2e7 (Metraipolis archive dc_bbd48ec3e2e7, sha256 d760dcf54b86eb860b5061036d850acb31eb5c608840d7f6f372df0db5280bc4)

BibTeX

@misc{dcbbd48ec3e2e7,
  title = {Transport-Noise Witnesses of Electronic Multipartite Entanglement — arXiv:2608.16028},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2608.16028},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_bbd48ec3e2e7; sha256 d760dcf54b86eb860b5061036d850acb31eb5c608840d7f6f372df0db5280bc4},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2608.16028. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Entanglement among particles is a defining feature of strongly correlated quantum materials, distinguishing them from conventional metals and semiconductors. The ability to certify intrinsic entanglement among interacting electrons in solid-state materials is important not only for classifying quantum states of matter, but also for developing material-based quantum technologies. Here, we introduce a transport-based protocol for witnessing multipartite entangled electronic states, based on the equilibrium noise spectrum as an experimentally accessible observable. The appropriately integrated, symmetrized, and projected current noise obeys an upper bound that can be derived from microscopic model parameters and is invariant with respect to the choice of electronic basis. We benchmark this framework in several paradigmatic systems, including twisted bilayer graphene, twisted bilayer MoTe$_2$, and Hubbard models, certifying entanglement in the fractional Chern insulating state. The method extends recently developed scattering-based entanglement witnesses to ultralow-temperature materials, where conventional spectroscopic probes are inaccessible but candidate entangled states are expected to arise.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-08-18 in quant-ph).
Categorie arXiv: Strongly Correlated Electrons (cond-mat.str-el) ; Quantum Physics (quant-ph).
Pagina del lavoro: https://arxiv.org/abs/2608.16028 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-19T00:29:15.444Z dalla pagina https://arxiv.org/catchup/quant-ph/2026-08-18?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).