{
  "abstract": "Bound states in the continuum (BICs) can confine photonic excitations in open systems without conventional cavities or band gaps, making them natural candidates for long-lived quantum storage and single-photon control. Their use is limited, however, by two obstacles: they are dark to incident photons, and they lack spectral-gap protection from the surrounding continuum. We overcome both limitations in a giant atom coupled to a one-dimensional waveguide using two temporal control knobs. Atomic-frequency modulation breaks and restores the destructive-interference condition, enabling deterministic capture and release of mode-matched single photons. Coupling modulation instead preserves the BIC condition while tuning the atomic and photonic weights of the stored state. A key result is that this embedded state can nevertheless be controlled adiabatically despite the absence of a spectral gap, with an intrinsic leakage probability linear in the ramp rate. By separating radiative access from BIC-preserving deformation, the protocol turns a dark BIC into a single-photon memory whose fidelity is set by the intrinsic continuum-induced leakage law, providing a route to embedded-state control in open photonic platforms.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. Lett. 137, 133602(2026)",
  "arxiv": "2606.17685",
  "author_total": 1,
  "authors": [
    {
      "name": "Yue Chang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/aep45868khbfq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.17685",
  "fulltext_url": null,
  "id": "aep45868khbfq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.17685",
  "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|Quantum optics and atomic interactions"
    ]
  ],
  "openalex": "W7165019573",
  "pdf_url": "https://arxiv.org/pdf/2606.17685",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/aep45868khbfq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2606.17685",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.17685"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Coherent Control of an Embedded Bound State Without a Spectral Gap",
  "title_text": "Coherent Control of an Embedded Bound State Without a Spectral Gap",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/aep45868khbfq",
  "venue": "arXiv",
  "versions": []
}