{
  "abstract": "Two-dimensional massive Dirac systems feature a gapped Dirac-cone dispersion central to a broad range of phenomena in condensed-matter and topological physics. While quantum simulations have demonstrated one-dimensional Dirac dynamics and two-dimensional massless Weyl dynamics, programmable simulation of massive two-dimensional Dirac dynamics remains experimentally unexplored. Here, we realize a programmable two-dimensional free Dirac Hamiltonian in circuit QED, with independently tunable spin-momentum couplings and mass, using a single Rabi-driven qubit coupled to two modes of a multimode cavity. Using this Hamiltonian, we observe rotational Zitterbewegung of a two-dimensional massive Dirac particle and its dependence on the effective mass. Time-dependent master-equation simulations incorporating measured decoherence, corrections beyond the rotating-wave approximation (RWA), and anharmonicity of the transmon reproduce the observed dynamics. Our results establish multimode circuit QED as a compact, programmable platform for higher-dimensional relativistic quantum dynamics and provide a foundation for exploring dynamical and topological phenomena in gapped Dirac systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.16628",
  "author_total": 5,
  "authors": [
    {
      "name": "Jiwon Kang"
    },
    {
      "name": "Jiuk Lee"
    },
    {
      "name": "Eliya Blumenthal"
    },
    {
      "name": "Shay Hacohen-Gourgy"
    },
    {
      "name": "Eunseong Kim"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7xgetpztbr6jm.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.16628",
  "fulltext_url": null,
  "id": "7xgetpztbr6jm",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.16628",
  "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",
      "3107|Topological Materials and Phenomena"
    ]
  ],
  "openalex": "W7213415991",
  "pdf_url": "https://arxiv.org/pdf/2609.16628",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-15",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7xgetpztbr6jm.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:21:41Z",
      "native_id": "2609.16628",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.16628"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Quantum Simulation of Two-Dimensional Free Dirac Hamiltonian in Multimode Circuit QED",
  "title_text": "Quantum Simulation of Two-Dimensional Free Dirac Hamiltonian in Multimode Circuit QED",
  "type": "preprint",
  "updated_at": "2026-10-30T12:21:41Z",
  "url": "https://research.draconitic.com/paper/7xgetpztbr6jm",
  "venue": "arXiv",
  "versions": []
}