{
  "annotation_id": "e2ef99e6-455e-49ed-bb62-27c59d03682c",
  "date_created": "2026-03-02T18:02:09.600000Z",
  "date_modified": "2026-03-02T18:02:09.600000Z",
  "file_hash": "7d1699dd6efb0ee6cf58de576a5c6b486d1d43b782b24ce93976aba3c24bb221",
  "private": false,
  "record": {
    "abstract": "Many applications of magnetic resonance are limited by rapid loss of spin\ncoherence caused by large transverse relaxation rates. In nuclear magnetic\nresonance (NMR) of large proteins, increased relaxation losses lead to poor\nsensitivity of experiments and increased measurement time. In this paper we\ndevelop broadband relaxation optimized pulse sequences (BB-CROP) which approach\nfundamental limits of coherence transfer efficiency in the presence of very\ngeneral relaxation mechanisms that include cross-correlated relaxation. These\nbroadband transfer schemes use new techniques of chemical shift refocusing\n(STAR echoes) that are tailored to specific trajectories of coupled spin\nevolution. We present simulations and experimental data indicating significant\nenhancement in the sensitivity of multi-dimensional NMR experiments of large\nmolecules by use of these methods.",
    "arxiv_id": "quant-ph/0407178",
    "authors": [
      "N. Khaneja",
      "J. S. Li",
      "C. Kehlet",
      "B. Luy",
      "S. J. Glaser"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Broadband Relaxation-Optimized Polarization Transfer in Magnetic   Resonance",
    "url": "https://arxiv.org/abs/quant-ph/0407178"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4a77f6f0-ba36-4853-975c-2780ae07e9fc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}