{
  "annotation_id": "0234edd1-7199-4aa0-a997-097d48fdb45d",
  "date_created": "2026-03-02T18:02:10.053000Z",
  "date_modified": "2026-03-02T18:02:10.053000Z",
  "file_hash": "7df52dcedb2a28b7959248e21e030cc85abeee389f344e2d58a7b7551c790487",
  "private": false,
  "record": {
    "abstract": "We show that a perfect quantum state transmission can be realized through a\nspin chain possessing a commensurate structure of energy spectrum, which is\nmatched with the corresponding parity. As an exposition of the mirror inversion\nsymmetry discovered by Albanese et. al (quant-ph/0405029), the parity matched\nthe commensurability of energy spectra help us to present the novel\npre-engineered spin systems for quantum information transmission. Based on the\nthese theoretical analysis, we propose a protocol of near-perfect quantum state\ntransfer by using a ferromagnetic Heisenberg chain with uniform coupling\nconstant, but an external parabolic magnetic field. The numerical results shows\nthat the initial Gaussian wave packet in this system with optimal field\ndistribution can be reshaped near-perfectly over a longer distance.",
    "arxiv_id": "quant-ph/0408152",
    "authors": [
      "T. Shi",
      "Ying Li",
      "Z. Song",
      "C. P. Sun"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "doi": "10.1103/PhysRevA.71.032309",
    "journal_ref": "Phys. Rev. A 71, 032309(2005)",
    "title": "Quantum state transfer via the ferromagnetic chain in a spatially   modulated field",
    "url": "https://arxiv.org/abs/quant-ph/0408152"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a7d40218-4811-41ac-9aa4-8c6f79a7490e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}