{
  "annotation_id": "255c8ded-1767-477b-92a8-0f7796d12680",
  "date_created": "2026-03-02T18:00:08.545000Z",
  "date_modified": "2026-03-02T18:00:08.545000Z",
  "file_hash": "f42d0fef437b328cf440c743525e8dfd22f8167ee53ff50b4eafa4e8c460cc81",
  "private": false,
  "record": {
    "abstract": "The bulk viscosity of three-flavor color-superconducting quark matter\noriginating from the nonleptonic process u+s \u003c-\u003e u+d is computed. It is assumed\nthat up and down quarks form Cooper pairs while the strange quark remains\nunpaired (2SC phase). A general derivation of the rate of strangeness\nproduction is presented, involving contributions from a multitude of different\nsubprocesses, including subprocesses that involve different numbers of gapped\nquarks as well as creation and annihilation of particles in the condensate. The\nrate is then used to compute the bulk viscosity as a function of the\ntemperature, for an external oscillation frequency typical of a compact star\nr-mode. We find that, for temperatures far below the critical temperature T_c\nfor 2SC pairing, the bulk viscosity of color-superconducting quark matter is\nsuppressed relative to that of unpaired quark matter, but for T \u003e~ 10^(-3) T_c\nthe color-superconducting quark matter has a higher bulk viscosity. This is\npotentially relevant for the suppression of r-mode instabilities early in the\nlife of a compact star.",
    "arxiv_id": "nucl-th/0608019",
    "authors": [
      "Mark G. Alford",
      "Andreas Schmitt"
    ],
    "categories": [
      "nucl-th",
      "astro-ph",
      "hep-ph"
    ],
    "doi": "10.1088/0954-3899/34/1/005",
    "journal_ref": "J.Phys.G34:67-102,2007",
    "title": "Bulk viscosity in 2SC quark matter",
    "url": "https://arxiv.org/abs/nucl-th/0608019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3981abfe-437c-4230-82e8-b3382f827660",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}