{
  "abstract": "An RF-driven Josephson weak link can retain a measurable response maximum after that maximum ceases to identify the first Shapiro-step voltage. We reanalyse archived antenna-coupled YBCO measurements using a branch-paired, continuity-aware framework that separates symmetric voltage detuning from common-mode offset and permits an explicit non-identifiable outcome. The source archive comprises 181 TXT entries; the preserved analysis cohort contains 134 distinct RF-exposed records. At 155 GHz, Device A retains paired errors of 0.467–0.539% from 10 to 50 K, develops a 3.481% paired displacement at nominal 60 K, and yields no defensible first-step assignment in ten standard-frequency records at nominal 70 K despite persistent maxima. Device B remains identifiable at all 15 nominally matched temperature–frequency conditions and in 14/14 available nominal-70 K RF records (0.560% RMS error). Across 20 documented sensitivity settings, the broad condition-level interpretation is maintained, with two isolated false-positive acceptances under stress settings. A constrained overlapping-response reconstruction reproduces the displaced maximum, while fits to native acquired I–V samples also admit a flexible asymmetric single-response description; the microscopic decomposition is not identified. The results establish a practical distinction between detecting a maximum and assigning an identifiable Shapiro-step voltage, while documenting the uncertainty and configuration-comparison limits of the historical measurements.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Mechanical Engineering and Mechatronics, Faculty of Engineering, Ariel University, Ariel 40700, Israel"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Eldad Holdengreber"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2meagdrbt5z49.bib",
  "cited_by": 0,
  "doi": "10.1016/j.rinp.2026.108771",
  "fulltext_url": "http://www.sciencedirect.com/science/article/pii/S221137972600197X",
  "id": "2meagdrbt5z49",
  "issns": [
    "2211-3797"
  ],
  "landing_url": "https://doi.org/10.1016/j.rinp.2026.108771",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QC1-999"
    ],
    [
      "openalex",
      "3104|Physics of Superconductivity and Magnetism"
    ]
  ],
  "openalex": "W7223142918",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/2meagdrbt5z49.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:43:32Z",
      "native_id": "6477873ca6b84f6eaf77995031c40b47",
      "source": "doaj",
      "url": "https://doi.org/10.1016/j.rinp.2026.108771"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3104|Physics of Superconductivity and Magnetism",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Shapiro-step identifiability in YBCO Josephson weak links: A branch-paired reanalysis",
  "title_text": "Shapiro-step identifiability in YBCO Josephson weak links: A branch-paired reanalysis",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:43:32Z",
  "url": "https://research.draconitic.com/paper/2meagdrbt5z49",
  "venue": "Results in Physics",
  "versions": []
}