{
  "annotation_id": "a19ed245-0c28-4536-b618-7410aefbde2f",
  "date_created": "2026-03-02T18:02:27.714000Z",
  "date_modified": "2026-03-02T18:02:27.714000Z",
  "file_hash": "df12c4b60890b6f91a7bc9113de3672746f373e02e034e1249b1d88b0e6921bf",
  "private": false,
  "record": {
    "abstract": "Dynamical decoupling can be used to preserve arbitrary quantum states despite\nundesired interactions with the environment, using control Hamiltonians\naffecting the system only. We present a system-independent analysis of\ndynamical decoupling based on leading order decoupling error estimates, valid\nfor bounded-strength environments. Using as a key tool a renormalization\ntransformation of the effective system-bath coupling Hamiltonian, we delineate\nthe reliability domain of dynamical decoupling used for quantum state\npreservation, in a general setting for a single qubit. We specifically analyze\nand compare two deterministic dynamical decoupling schemes -- periodic and\nconcatenated -- and distinguish between two limiting cases of fast versus slow\nenvironments. We prove that concatenated decoupling outperforms periodic\ndecoupling over a wide range of parameters. These results are obtained for both\n``ideal\u0027\u0027 (zero-width) and realistic (finite-width) pulses This work extends\nand generalizes our earlier work, Phys. Rev. Lett. 95, 180501 (2005).",
    "arxiv_id": "quant-ph/0607086",
    "authors": [
      "Kaveh Khodjasteh",
      "Daniel A. Lidar"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.062310",
    "journal_ref": "Phys. Rev. A. 75, 062310 (2007)",
    "title": "Performance of Deterministic Dynamical Decoupling Schemes: Concatenated   and Periodic Pulse Sequences",
    "url": "https://arxiv.org/abs/quant-ph/0607086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c453546c-ef3a-4131-a114-d9b4b7def72e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}