{
  "abstract": "Direct continuous quantum phase transitions between phases that break distinct symmetries challenge the conventional Landau-Ginzburg-Wilson paradigm and provide a framework for deconfined quantum criticality. Here, we investigate a Landau-forbidden ferromagnetic-to-valence-bond-solid (FM-VBS) transition in a frustrated one-dimensional spin chain using superconducting quantum processors. Combining matrix-product-state-assisted circuit preparation with quantum-hardware measurements, we resolve the suppression of long-range ferromagnetic correlations and the redistribution of competing-order fluctuations across the transition. Distance-resolved correlations and finite-size analyses reveal signatures consistent with critical behavior. We further extend our investigation to nonequilibrium dynamics, directly preparing dimerized states and tracking the evolution of VBS order and joint FM-VBS fluctuations under local unitary interactions. Our results establish a versatile quantum-hardware framework for probing competing orders, critical correlations, and many-body dynamics beyond conventional Landau theory.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.22482",
  "author_total": 3,
  "authors": [
    {
      "name": "Ruizhe Shen"
    },
    {
      "name": "Yin Zhong"
    },
    {
      "name": "Ching Hua Lee"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/aenvf0efq1z43.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.22482",
  "fulltext_url": null,
  "id": "aenvf0efq1z43",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.22482",
  "language": null,
  "licence": "CC0-1.0",
  "licence_label": "CC0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/publicdomain/zero/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum many-body systems"
    ]
  ],
  "openalex": "W7222965286",
  "pdf_url": "https://arxiv.org/pdf/2610.22482",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/aenvf0efq1z43.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:32Z",
      "native_id": "2610.22482",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.22482"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Exploring Quantum Phase Transitions Beyond Landau Theory on a Quantum Processor",
  "title_text": "Exploring Quantum Phase Transitions Beyond Landau Theory on a Quantum Processor",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:28Z",
  "url": "https://research.draconitic.com/paper/aenvf0efq1z43",
  "venue": "arXiv",
  "versions": []
}