{
  "abstract": "The emergence of entangled quantum optical states in high-harmonic generation raises a fundamental problem about its characterization, namely, \\textit{how can entanglement of extreme-ultraviolet radiation be certified for attosecond light fields?} Here, we provide experimentally accessible separability tests, particularly showing that attosecond photoelectron interferometry provides a direct solution to this problem. This is achieved by a quantum optical treatment of mapping photoelectron interferometry to the measurement of optical correlation functions. This yields a negative-partial-transpose witness for infrared-XUV entanglement and a sufficient witness of genuine multipartite entanglement without auxiliary optical measurements. We evaluate both witnesses on explicit optical states and identify how the protocol can be extended to XUV-XUV entanglement certification. Hence, we establish attosecond photoelectron interferometry as a general framework for entanglement certification across a wide range of optical frequencies.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.31187",
  "author_total": 1,
  "authors": [
    {
      "name": "Philipp Stammer"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e1hrxadfsbhm6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.31187",
  "fulltext_url": null,
  "id": "e1hrxadfsbhm6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.31187",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.optics"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Laser-Matter Interactions and Applications"
    ]
  ],
  "openalex": "W7223319703",
  "pdf_url": "https://arxiv.org/pdf/2610.31187",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e1hrxadfsbhm6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:34Z",
      "native_id": "2610.31187",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.31187"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.optics",
      "subfield": "optics-photonics"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Entanglement certification of attosecond light fields with photoelectron interferometry",
  "title_text": "Entanglement certification of attosecond light fields with photoelectron interferometry",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:34Z",
  "url": "https://research.draconitic.com/paper/e1hrxadfsbhm6",
  "venue": "arXiv",
  "versions": []
}