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<article xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="retraction" dtd-version="1.4" xml:lang="en">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">aqcmp</journal-id>
      <journal-title-group>
        <journal-title>Annals of Quantum and Condensed Matter Physics</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Ann. Quantum Condens. Matter Phys.</abbrev-journal-title>
      </journal-title-group>
      <issn publication-format="print">2511-9877</issn>
      <issn publication-format="electronic">2511-9958</issn>
      <publisher>
        <publisher-name>Meridian Academic Press</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.58303/v16cqp34</article-id>
      <title-group>
        <article-title>Retraction of: Quantum computational advantage with a programmable photonic processor: extended analysis</article-title>
      </title-group>
      <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2026-11-12">
        <day>12</day>
        <month>11</month>
        <year>2026</year>
      </pub-date>
      <volume>5</volume>
      <issue>2</issue>
      <permissions>
        <ali:free_to_read/>
        <license>
          <ali:license_ref>https://creativecommons.org/licenses/by/4.0/</ali:license_ref>
        </license>
      </permissions>
      <related-article related-article-type="retracted-article" ext-link-type="doi" xlink:href="10.58303/8k260k47"/>
    </article-meta>
  </front>
  <body><p>This article has been retracted by the journal. An investigation by the authors’ institution found that some of the figures had been inappropriately manipulated, which invalidates the reported results. The authors have been informed.</p></body>
</article>
