{
  "annotation_id": "4ef2479d-a8e4-41c9-98ee-274ea0314c17",
  "date_created": "2026-02-17T05:53:23.786000Z",
  "date_modified": "2026-02-17T05:53:23.786000Z",
  "file_hash": "6cd8417e147b8f75f2f12ba61f45d08a3a07e4d3755a46da04eb067758e054df",
  "private": false,
  "record": {
    "abstract": "We report microwave spectroscopy of Josephson junctions chains made from an epitaxial Al/InAs heterostructure. The chains exhibit superinductance, with characteristic wave impedance exceeding $R_{Q} = \\hbar/(2e)^{2}$. The planar nature of the junctions results in a large plasma frequency, with no measurable deviations from ideal dispersion up to $12~\\mathrm{GHz}$. Internal quality factors decrease sharply with frequency, which we describe with a simple loss model. The possibility of a loss mechanism intrinsic to the superconductor-semiconductor junction is considered.",
    "arxiv_id": "2601.10023",
    "authors": [
      "Junseok Oh",
      "Ido Levy",
      "Tyler Cowan",
      "Jacob Issokson",
      "Archana Kamal",
      "Javad Shabani",
      "Andrew P. Higginbotham"
    ],
    "categories": [
      "cond-mat.mes-hall",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Hybrid superinductance with Al/InAs",
    "url": "https://arxiv.org/abs/2601.10023",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "df80bd95-15a0-4254-8254-93f7e34f2de2",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}