{
  "abstract": "Scalable quantum networks require processing nodes with flexible internal connectivity, yet neutral-atom architectures remain constrained by the strong spatial dependence of native Rydberg interactions. Here we show that a Rydberg atom chain can act as a coherent quantum bus, converting a locally connected one-dimensional architecture into an effectively nonlocal interaction network. Virtual excitations in the dispersive regime mediate controllable interactions between spatially separated data units, which we derive analytically using a Green's-function continued-fraction method. The resulting mechanism is not restricted to single-excitation dynamics and supports several distinct functionalities, including Floquet-engineered chiral transport, remote entanglement of mechanical oscillators, and destructive interference for selectively suppressing unwanted dipole exchange. Simulations incorporating full long-range Rydberg interactions, atomic position fluctuations, and finite Rydberg-state lifetimes show that the mediated dynamics remain robust under experimentally relevant conditions. These results establish Rydberg chains as programmable coherent mediators for extending the internal connectivity of neutral-atom quantum nodes toward quasi-all-to-all coupling, providing a hardware-level route toward scalable and reconfigurable quantum-network architectures.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.18447",
  "author_total": 4,
  "authors": [
    {
      "name": "X. Jin"
    },
    {
      "name": "F. Yang"
    },
    {
      "name": "Weibin Li"
    },
    {
      "name": "X. Q. Shao"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a8rw32yqc33w7.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.18447",
  "fulltext_url": null,
  "id": "a8rw32yqc33w7",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.18447",
  "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|Cold Atom Physics and Bose-Einstein Condensates"
    ]
  ],
  "openalex": "W7213517327",
  "pdf_url": "https://arxiv.org/pdf/2609.18447",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a8rw32yqc33w7.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:01Z",
      "native_id": "2609.18447",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.18447"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "A Programmable Rydberg Quantum Bus for Nonlocal Connectivity",
  "title_text": "A Programmable Rydberg Quantum Bus for Nonlocal Connectivity",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:01Z",
  "url": "https://research.draconitic.com/paper/a8rw32yqc33w7",
  "venue": "arXiv",
  "versions": []
}