{
  "abstract": "Bound states in the continuum (BICs) provide a mechanism for preserving entanglement in waveguide quantum electrodynamics. Here, using quantum control techniques in a configuration of two braided giant atoms, we propose a robust approach to create high-fidelity entangled BICs. The protocol combines quasi-Floquet modulation of the effective atom--waveguide couplings with an independent phase-controlled atomic exchange, which provides restricted counterdiabatic assistance for preparing the complete dressed BIC. In the lossless effective model, we obtain a full-state BIC fidelity of $0.99992$ and an unconditional atomic Bell fidelity of $0.99588$ using a fast control protocol. Microscopic finite-mode simulations validate the central-sideband description during the passage, while static calibration-error scans quantify its control tolerances. A separate microscopic study with relaxation and dephasing, using experimentally motivated component scales, identifies a finite useful entanglement window and a benefit from shaping the coupling envelopes. These results support controlled preparation, retention, and retrieval of dressed entanglement within the stated control and noise assumptions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.32125",
  "author_total": 3,
  "authors": [
    {
      "name": "Alexis R. Legón"
    },
    {
      "name": "Pedro Orellana"
    },
    {
      "name": "Ariel Norambuena"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cjrm2118k6w57.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.32125",
  "fulltext_url": null,
  "id": "cjrm2118k6w57",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.32125",
  "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",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7214736441",
  "pdf_url": "https://arxiv.org/pdf/2609.32125",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cjrm2118k6w57.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:12Z",
      "native_id": "2609.32125",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.32125"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Counterdiabatic quasi-Floquet control for the generation of entangled BICs using giant atoms",
  "title_text": "Counterdiabatic quasi-Floquet control for the generation of entangled BICs using giant atoms",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:12Z",
  "url": "https://research.draconitic.com/paper/cjrm2118k6w57",
  "venue": "arXiv",
  "versions": []
}