{
  "abstract": "Scattering of quasiparticles provides direct access to the interactions that govern strongly correlated systems. In this work, we realize the quasiparticle scattering experiment of the Fermi-Hubbard model on a digital quantum processor by colliding a doublon and a holon in the half-filled chain of 21 sites encoded on 42 qubits of the ibm_boston processor. For the first time, we measure the transmission probability of quasiparticles of the Hubbard model on quantum hardware, which agrees with the Bethe-ansatz scattering matrix without free parameters. Beyond the scattering probabilities, the collision generates entanglement by superposing the transmitted and reflected components, which we infer from the particle-number fluctuation. In sharp contrast, a control collision between two doublons shows neither the interaction dependence nor the number fluctuation, as expected for indistinguishable particles. Our work demonstrates that the ability to create quasiparticles of a chosen flavor on demand and program their motion and interactions makes a digital quantum processor a new experimental toolset for probing the entanglement structure generated by quasiparticle scattering.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.13946",
  "author_total": 9,
  "authors": [
    {
      "name": "Chan Bin Bark"
    },
    {
      "name": "Hanbyul Kim"
    },
    {
      "name": "Yoonil Koo"
    },
    {
      "name": "SeungBeom Hong"
    },
    {
      "name": "Seik Pak"
    },
    {
      "name": "Kwang Jun Ahn"
    },
    {
      "name": "Sangmo Cheon"
    },
    {
      "name": "Youngseok Kim"
    },
    {
      "name": "Moon Jip Park"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7krfvgmwams3e.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.13946",
  "fulltext_url": null,
  "id": "7krfvgmwams3e",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.13946",
  "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",
      "cond-mat.str-el"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum many-body systems"
    ]
  ],
  "openalex": "W7221527436",
  "pdf_url": "https://arxiv.org/pdf/2610.13946",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7krfvgmwams3e.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:28:36Z",
      "native_id": "2610.13946",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.13946"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "An entangling Hubbard quasiparticle collider on a digital quantum processor",
  "title_text": "An entangling Hubbard quasiparticle collider on a digital quantum processor",
  "type": "preprint",
  "updated_at": "2026-10-30T12:28:36Z",
  "url": "https://research.draconitic.com/paper/7krfvgmwams3e",
  "venue": "arXiv",
  "versions": []
}