{
  "annotation_id": "820bc50b-7998-4314-809b-672cd8e23236",
  "date_created": "2026-03-02T18:02:34.108000Z",
  "date_modified": "2026-03-02T18:02:34.108000Z",
  "file_hash": "263171b3864571fb20d187b767d5a1a57c7701ffea5adafd9f388bcc424c72d7",
  "private": false,
  "record": {
    "abstract": "We analyze the role of resonances in two-fermion entanglement production for\na quasi one-dimensional two channel scattering problem. We solve exactly for\nthe problem of a two-fermion antisymmetric product state scattering off a\ndouble delta well potential. It is shown that the two-particle concurrence of\nthe post-selected state has an oscillatory behavior where the concurrence\nvanishes at the values of momenta for virtual bound states in the double well.\nThese concurrence zeros are interpreted in terms of the uncertainty in the\nknowledge of the state of the one particle subspace reduced one particle\ndensity matrix. Our results suggest manipulation of fermion entanglement\nproduction through the resonance structure of quantum dots.",
    "arxiv_id": "quant-ph/0611210",
    "authors": [
      "Alexander L\u00f3pez",
      "Otto Rend\u00f3n",
      "V\u00edctor M. Villalba",
      "Ernesto Medina"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevB.75.033401",
    "title": "Two electron entanglement in quasi-one dimensional system: Role of   resonances",
    "url": "https://arxiv.org/abs/quant-ph/0611210"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a4690e7f-e027-4a0c-bc4a-0ece90bb4db1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}