{
  "annotation_id": "8cf1c7a7-9846-4b33-986d-ef9463a2988d",
  "date_created": "2026-03-02T18:02:06.502000Z",
  "date_modified": "2026-03-02T18:02:06.502000Z",
  "file_hash": "3a4f6b88de1d2be9119eceaba9923b7922f1c0fd2612c38908b1e0f800fc8ade",
  "private": false,
  "record": {
    "abstract": "We propose an effective Hamiltonian approach to investigate decoherence of a\nquantum system in a non-Markovian reservoir, naturally imposing the complete\npositivity on the reduced dynamics of the system. The formalism is based on the\nnotion of an effective reservoir, i.e., certain collective degrees of freedom\nin the reservoir that are responsible for the decoherence. As examples for\ncompletely positive decoherence, we present three typical decoherence processes\nfor a qubit such as dephasing, depolarizing, and amplitude-damping. The effects\nof the non-Markovian decoherence are compared to the Markovian decoherence.",
    "arxiv_id": "quant-ph/0403018",
    "authors": [
      "Jinhyoung Lee",
      "Inbo Kim",
      "Helen McAneney",
      "M. S. Kim",
      "Doyeol Ahn"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.70.024301",
    "journal_ref": "Phys. Rev. A 70, 024301 (2004)",
    "title": "Completely-Positive Non-Markovian Decoherence",
    "url": "https://arxiv.org/abs/quant-ph/0403018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4ea3a375-92a7-4b33-881b-d6208dea1c80",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}