{
  "annotation_id": "34d7b363-995b-4a0d-bc61-ff8e411cf8c5",
  "date_created": "2026-03-02T18:02:12.641000Z",
  "date_modified": "2026-03-02T18:02:12.641000Z",
  "file_hash": "4b0921e8e8fb7c666eec51a096f554575c4bf25bfe1d8a5be90fbe85ed5056f4",
  "private": false,
  "record": {
    "abstract": "In this work we study the behaviour of Wigner phase delay time for tunneling\nin the reflection mode. Our system consists of a circular loop connected to a\nsingle wire of semi-infinite length in the presence of Aharonov-Bohm flux. We\ncalculate the analytical expression for the saturated delay time. This\nsaturated delay time is independent of Aharonov- Bohm flux and the width of the\nopaque barrier thereby generalizing the Hartman effect. This effect implies\nsuperluminal group velocities as a consequence. We also briefly discuss the\nconcept called \"space collapse or space destroyer\".",
    "arxiv_id": "quant-ph/0411161",
    "authors": [
      "Swarnali Bandopadhyay",
      "A. M. Jayannavar"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "title": "Phase delay time and superluminal propagation in barrier tunneling",
    "url": "https://arxiv.org/abs/quant-ph/0411161"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c72c7e8e-6e54-4592-a233-8ef1665ca074",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}