{
  "annotation_id": "99fba944-6af1-4305-9070-bf94542ee2ae",
  "date_created": "2026-03-02T18:02:23.420000Z",
  "date_modified": "2026-03-02T18:02:23.420000Z",
  "file_hash": "ebd2c5e57fca6c637b116effd6aba10070dad3f65474fd9c49f42fb5fe90d03a",
  "private": false,
  "record": {
    "abstract": "We investigate the short-time dynamics of a delta-function potential barrier\non an initially confined wave-packet. There are mainly two conclusions: A) At\nshort times the probability density of the first particles that passed through\nthe barrier is unaffected by it. B) When the barrier is absorptive (i.e., its\npotential is imaginary) it affects the transmitted wave function at shorter\ntimes than a real potential barrier. Therefore, it is possible to distinguish\nbetween an imaginary and a real potential barrier by measuring its effect at\nshort times only on the transmitting wavefunction.",
    "arxiv_id": "quant-ph/0601069",
    "authors": [
      "Er\u0027el Granot",
      "Avi Marchewka"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.032111",
    "title": "Potential Barrier Classification by Short-Time Measurement",
    "url": "https://arxiv.org/abs/quant-ph/0601069"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0b9d81ba-7007-4528-850e-4a89d5bfe770",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}