{
  "annotation_id": "a7ba4b61-9960-41c9-b6ca-9b8bca31a92c",
  "date_created": "2026-03-02T18:02:09.667000Z",
  "date_modified": "2026-03-02T18:02:09.667000Z",
  "file_hash": "0899805f6e27552c41f8e550be5727ea2ae05c4a61aed1a9a7fa66b94b18670a",
  "private": false,
  "record": {
    "abstract": "Mapping the physical dipolar Hamiltonian of a solid-state network of nuclear\nspins onto a system of nearest-neighbor couplings would be extremely useful for\na variety of quantum information processing applications, as well as NMR\nstructural studies. We demonstrate such a mapping for a system consisting of an\nensemble of spin pairs, where the coupling between spins in the same pair is\nsignificantly stronger than the coupling between spins on different pairs. An\namplitude modulated RF field is applied on resonance with the Larmor frequency\nof the spins, with the frequency of the modulation matched to the frequency of\nthe dipolar coupling of interest. The spin pairs appear isolated from each\nother in the regime where the RF power (omega_1) is such that omega_weak \u003c\u003c\nomega_1 \u003c\u003c omega_strong. Coherence lifetimes within the two-spin system are\nincreased from 19 us to 11.1 ms, a factor of 572.",
    "arxiv_id": "quant-ph/0408158",
    "authors": [
      "Chandrasekhar Ramanathan",
      "Suddhasattwa Sinha",
      "Jonathan Baugh",
      "Timothy F. Havel",
      "David G. Cory"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.020303",
    "journal_ref": "Phys. Rev. A 71, 020303(R) (2005)",
    "title": "Selective coherence transfers in homonuclear dipolar coupled spin   systems",
    "url": "https://arxiv.org/abs/quant-ph/0408158"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7178a0e0-1f4b-4262-81ac-db46cef7512a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}