{
  "abstract": "Repulsively bound doublons are two-particle composites formed by strong interactions and are usually separated from the scattering continuum. Introducing spin-orbit coupling fundamentally alters the underlying band structure, providing a powerful tuning knob to shift these isolated pairs toward this continuum. However, because entering such a regime typically dictates immediate dissociation, whether this coupling can drive these pairs inside while preserving their bound nature constitutes a fundamental unresolved challenge. Here we show that spin-orbit coupling in the one-dimensional Fermi-Hubbard model can drive doublons into the two-particle scattering continuum. Most of these states hybridize with extended channels and decay, whereas a subset remains decoupled and spatially bound, forming many-body bound states in the continuum (BICs). We map the interacting two-particle problem onto a two-dimensional lattice of coupled acoustic cavities, and experimentally observe both the radiating doublon continuum and the confined BIC states. These results demonstrate that spin-orbit coupling can turn selected doublons into interaction-induced BICs, deepening the understanding of continuum physics for interaction-bound pairs.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.24429",
  "author_total": 4,
  "authors": [
    {
      "name": "Kai Chen"
    },
    {
      "name": "Junyan Guan"
    },
    {
      "name": "Zhongming Gu"
    },
    {
      "name": "Jie Zhu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7yj1fqjhx8axj.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.24429",
  "fulltext_url": null,
  "id": "7yj1fqjhx8axj",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.24429",
  "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",
      "cond-mat.str-el"
    ],
    [
      "openalex",
      "3107|Cold Atom Physics and Bose-Einstein Condensates"
    ]
  ],
  "openalex": "W7214032245",
  "pdf_url": "https://arxiv.org/pdf/2609.24429",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7yj1fqjhx8axj.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.24429",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.24429"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Spin-Orbit Induced Confinement of Correlated Bound States in the Continuum",
  "title_text": "Spin-Orbit Induced Confinement of Correlated Bound States in the Continuum",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/7yj1fqjhx8axj",
  "venue": "arXiv",
  "versions": []
}