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An Entanglement-Assisted Stabilizer Framework for Distributed Sensing of Local Phases — arXiv:2609.02098

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.02098
License (as archived): CC0-1.0
Archived: 2026-10-17T06:05:35.155Z
SHA-256 of the archived text: 4f29bf37b032e0380a4673f41ebe6b1108d7cf67c4b9a3867d837be36a8e0c11
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How to cite

An Entanglement-Assisted Stabilizer Framework for Distributed Sensing of Local Phases — arXiv:2609.02098 — arXiv (en), https://arxiv.org/abs/2609.02098 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_116dfeca1bd2 (Metraipolis archive dc_116dfeca1bd2, sha256 4f29bf37b032e0380a4673f41ebe6b1108d7cf67c4b9a3867d837be36a8e0c11)

BibTeX

@misc{dc116dfeca1bd2,
  title = {An Entanglement-Assisted Stabilizer Framework for Distributed Sensing of Local Phases — arXiv:2609.02098},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.02098},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_116dfeca1bd2; sha256 4f29bf37b032e0380a4673f41ebe6b1108d7cf67c4b9a3867d837be36a8e0c11},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.02098. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Distributed quantum sensing requires spatially separated probes to acquire local parameters while maintaining compatibility with network-level quantum information processing. We develop an entanglement-assisted stabilizer framework based on the extended structure of entanglement-assisted quantum error-correcting (EAQEC) codes, in which the remote halves of pre-shared ebits are used directly as local phase probes while the joint state simultaneously carries an encoded logical subsystem. Each remote probe acquires a local Z-axis phase and subsequently returns through an X-type noise channel. Within the extended EAQEC stabilizer structure, the stabilizer containing $X_{B_j}$ provides phase-dependent measurement statistics, whereas its partner containing $Z_{B_j}$ records the corresponding return-error syndrome. A graph-code formulation is introduced to make this structure explicit, together with an illustrative [[5,1,3;2]] construction. We further show that, conditioned on the joint sensing-and-syndrome measurement record, the post-sensing state differs from the original encoded state only by a known Pauli transformation, so that the logical information remains available for subsequent encoded operations. For the local-phase model considered here, the stabilizer readout attains the available quantum Fisher information, while the finite-shot estimator approaches the corresponding $1/\sqrt{M}$ scaling as the number of repetitions increases. The framework therefore provides a common entanglement-assisted stabilizer structure for distributed local-phase sensing, restricted return-error identification, and post-sensing logical-state retention, without relying on an intrinsic metrological enhancement from EAQEC itself.

Tema degli esploratori: fisica e astronomia (retro-catalogo arXiv: annunci del 2026-09-03 in quant-ph).
Categorie arXiv: Quantum Physics (quant-ph).
Pagina del lavoro: https://arxiv.org/abs/2609.02098 — 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 2026-10-17T05:51:04.223Z dalla pagina https://arxiv.org/catchup/quant-ph/2026-09-03?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).