{
  "annotation_id": "58ac68f3-3579-48cd-93c6-8dace6077e32",
  "date_created": "2026-03-02T18:02:20.413000Z",
  "date_modified": "2026-03-02T18:02:20.413000Z",
  "file_hash": "ac17e5cd15157a61d5f446e3956015d16d50cf683be8cf06888974fe45532d2f",
  "private": false,
  "record": {
    "abstract": "Coupling the output of a source quantum system into a target quantum system\nis easily treated by cascaded systems theory if the intervening quantum channel\nis dispersionless. However, dispersion may be important in some transfer\nprotocols, especially in solid-state systems. In this paper we show how to\ngeneralize cascaded systems theory to treat such dispersion, provided it is not\ntoo strong. We show that the technique also works for fermionic systems with a\nlow flux, and can be extended to treat fermionic systems with large flux. To\ntest our theory, we calculate the effect of dispersion on the fidelity of a\nsimple protocol of quantum state transfer. We find good agreement with an\napproximate analytical theory that had been previously developed for this\nexample.",
    "arxiv_id": "quant-ph/0507256",
    "authors": [
      "T. M. Stace",
      "H. M. Wiseman"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "doi": "10.1103/PhysRevA.73.012317",
    "title": "An approximate method for treating dispersion in one-way quantum   channels",
    "url": "https://arxiv.org/abs/quant-ph/0507256"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "887feaa1-0220-4e37-b14c-e599ef358af8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}