{
  "annotation_id": "5875e56f-c2df-4468-a5f9-969b964210ee",
  "date_created": "2026-03-02T18:02:44.971000Z",
  "date_modified": "2026-03-02T18:02:44.971000Z",
  "file_hash": "00f020121b088edc1b8145e73e576c5cd33280ff9befeefa026fa4f27202a435",
  "private": false,
  "record": {
    "abstract": "It is shown that the Hartman-Fletcher effect is valid for all the known\nexpressions of the mean tunnelling time, in various nonrelativistic approaches,\nfor the case of finite width barriers without absorption. Then, we show that\nthe same effect is not valid for the tunnelling time mean-square fluctuations.\nOn the basis of the Hartman-Fletcher effect and the known analogy between\nphoton and nonrelativistic-particle tunnelling, one can explain the\nSuperluminal group-velocities observed in various photon tunnelling experiments\n(without violation of the so-called \"Einstein causality\").",
    "arxiv_id": "quant-ph/9810053",
    "authors": [
      "J. Jakiel",
      "V. S. Olkhovsky",
      "Erasmo Recami"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0375-9601(98)00626-4",
    "journal_ref": "Phys.Lett. A248 (1998) 156-160",
    "title": "On Superluminal motions in photon and particle tunnelings",
    "url": "https://arxiv.org/abs/quant-ph/9810053"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c666f188-6c72-4b83-bf96-1959fecd09ab",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}