{
  "abstract": "Standard device-independent self-testing uses Naimark dilation to assume projective measurements, masking the operational limitations of realistic non-unitary observables. We establish a robust pure self-test for the singlet and Pauli observables that entirely circumvents dilation of the measurement apparatus. Assuming a pure state to model an untrusted source, we regularize the physical non-projective operators and derive an analytic $\\mathcal{O}(\\sqrtε)$ robustness bound. Our results suggest that device-independent certification of real implementations is significantly more demanding than standard projective models imply.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2607.04035",
  "author_total": 2,
  "authors": [
    {
      "name": "Alexandre C. Orthey Jr."
    },
    {
      "name": "Magdalena Stobińska-Moretto"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b6fbm872t2j8x.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2607.04035",
  "fulltext_url": null,
  "id": "b6fbm872t2j8x",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2607.04035",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7167611623",
  "pdf_url": "https://arxiv.org/pdf/2607.04035",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b6fbm872t2j8x.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2607.04035",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2607.04035"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Robust self-test of the maximally entangled state of two-qubits without assuming unitary observables",
  "title_text": "Robust self-test of the maximally entangled state of two-qubits without assuming unitary observables",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/b6fbm872t2j8x",
  "venue": "arXiv",
  "versions": []
}