{
  "abstract": "Broadband quantum memory devices are essential elements for future quantum networks. Here we propose a broadband quantum memory scheme called Hole Anti-hole Grating Echo Memory (HAGEM) for rare-earth ions in solids, which can be implemented with most of the present rare-earth ions hosted in various types of solids. Using HAGEM, a quantum memory device with one billion temporal modes per second can be developed with current available technologies. To validate the memory protocol, we conducted some proof-of-concept experiments. We provide a Eu$^\\text{3+}$ molecular complex with special hyperfine level structures of which the hyperfine level separations are in a specific mathematical correlation that can be obtained by harnessing chemical engineering. Using the proposed memory protocol and material, we experimentally demonstrate a single-mode quantum optical storage efficiency of 14.9% and a memory bandwidth of 200MHz, which can easily be extended to a few GHz. In addition, a multi-mode storage of four temporal modes is achieved with a storage efficiency of 1.3%. Broadband & large-multimode quantum memory device with a long storage time enabled by HAGEM integrating with the current available entangled photon pair source and tunable delay lines, a quantum repeater network with an entanglement distribution rate on the order of 1kHz - 10kHz can be created with a communication distance around 100km. This will greatly facilitate the development of quantum networks in near future.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.28271",
  "author_total": 9,
  "authors": [
    {
      "name": "Yisheng Lei"
    },
    {
      "name": "Senthil Kumar Kuppusamy"
    },
    {
      "name": "Idris Tlemsani"
    },
    {
      "name": "Suma Al-Hunaishi"
    },
    {
      "name": "Pengrui Jiao"
    },
    {
      "name": "Olaf Fuhr"
    },
    {
      "name": "Mario Ruben"
    },
    {
      "name": "Philippe Goldner"
    },
    {
      "name": "Diana Serrano"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5qvcnv5dbmbcb.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.28271",
  "fulltext_url": null,
  "id": "5qvcnv5dbmbcb",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.28271",
  "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",
      "physics.chem-ph"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Quantum optics and atomic interactions"
    ]
  ],
  "openalex": "W7214232492",
  "pdf_url": "https://arxiv.org/pdf/2609.28271",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5qvcnv5dbmbcb.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2609.28271",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.28271"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "arxiv:physics.chem-ph",
      "subfield": "physical"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Broadband and Large-Multimode Quantum Optical Storage with Rare-Earth Ions in Solids",
  "title_text": "Broadband and Large-Multimode Quantum Optical Storage with Rare-Earth Ions in Solids",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/5qvcnv5dbmbcb",
  "venue": "arXiv",
  "versions": []
}