{
  "annotation_id": "99cceba0-0007-49a2-8d6c-c11d255fbc1d",
  "date_created": "2026-03-02T18:02:20.736000Z",
  "date_modified": "2026-03-02T18:02:20.736000Z",
  "file_hash": "b904f3ac4a0cc8c99363faa72a8c6228959df0b117e64fd9f7d7e655ec7d3c48",
  "private": false,
  "record": {
    "abstract": "We study the quantum state transfer (QST) in a class of qubit network with\non-site interaction, which is described by the generalized Hubbard model with\nengineered couplings. It is proved that the system of two electrons with\nopposite spins in this quantum network of $N$ sites can be rigorously reduced\ninto $N$ one dimensional engineered single Bloch electron models with central\npotential barrier. With this observation we find that such system can perform a\nperfect QST, the quantum swapping between two distant electrons with opposite\nspins. Numerical results show such QST and the resonant-tunnelling for the\noptimal on-site interaction strengths.",
    "arxiv_id": "quant-ph/0510109",
    "authors": [
      "S. Yang",
      "Z. Song",
      "C. P. Sun"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.str-el"
    ],
    "doi": "10.1103/PhysRevB.73.195122",
    "journal_ref": "Phys. Rev. B 73, 195122 (2006)",
    "title": "Quantum state swapping via qubit network with Hubbard interaction",
    "url": "https://arxiv.org/abs/quant-ph/0510109"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0faedf33-1df8-45f9-869c-5395e6cea759",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}