{
  "annotation_id": "a8105654-63bc-4be3-8fed-09214edd6b02",
  "date_created": "2026-03-02T18:02:13.576000Z",
  "date_modified": "2026-03-02T18:02:13.576000Z",
  "file_hash": "293638bc3ab731a6f624220223a9b5c23486d6f4f3a84b7bc886184907ed1668",
  "private": false,
  "record": {
    "abstract": "A suitable sequence of sharp pulses applied to a spin coupled to a bosonic\nbath can cool its state, i.e., increase its polarization or ground state\noccupation probability. Starting from an unpolarized state of the spin in\nequilibrium with the bath, one can reach very low temperatures or sizeable\npolarizations within a time shorter than the decoherence time. Both the bath\nand external fields are necessary for the effect which comes from the\nbackreaction of the spin on the bath. This method can be applied to cool at\nonce a disordered ensemble of spins. Since the bath is crucial for this\nmechanism, the cooling limits are set by the strength of its interaction with\nthe spin(s).",
    "arxiv_id": "quant-ph/0411138",
    "authors": [
      "A. E. Allahverdyan",
      "R. Serral Gracia",
      "Th. M. Nieuwenhuizen"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.other"
    ],
    "doi": "10.1103/PhysRevLett.93.260404",
    "title": "Bath Assisted Cooling of Spins",
    "url": "https://arxiv.org/abs/quant-ph/0411138"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a7ad707c-4503-48c1-925a-e9a4b44f2e0c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}