{
  "annotation_id": "d6d1b878-718e-415c-9dd6-0e387135b574",
  "date_created": "2026-03-02T18:00:04.572000Z",
  "date_modified": "2026-03-02T18:00:04.572000Z",
  "file_hash": "4df188fe72d6afdc6b3e4b2ce94ef1aeacda67c60bd7e67fd1c450c26700689a",
  "private": false,
  "record": {
    "abstract": "The properties of spin polarized neutron matter are studied both at zero and\nfinite temperature using Skyrme-type interactions. It is shown that the\ncritical density at which ferromagnetism takes place decreases with\ntemperature. This unexpected behaviour is associated to an anomalous behaviour\nof the entropy which becomes larger for the polarized phase than for the\nunpolarized one above a certain critical density. This fact is a consequence of\nthe dependence of the entropy on the effective mass of the neutrons with\ndifferent third spin component and a new constraint on the parameters of the\neffective Skyrme force is derived in order to avoid such a behaviour.",
    "arxiv_id": "nucl-th/0501035",
    "authors": [
      "Arnau Rios",
      "Artur Polls",
      "Isaac Vida\u00f1a"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.71.055802",
    "journal_ref": "Phys.Rev. C71 (2005) 055802",
    "title": "Ferromagnetic instabilities in neutron matter at finite temperature with   the Skyrme interaction",
    "url": "https://arxiv.org/abs/nucl-th/0501035"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0688fcbd-942c-401c-aea5-57dc8c92a745",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}