{
  "annotation_id": "87894dfa-c333-44b0-ad88-830f851da6a4",
  "date_created": "2026-03-02T18:01:11.270000Z",
  "date_modified": "2026-03-02T18:01:11.270000Z",
  "file_hash": "3162ffccd289243f854be3e4181d06752f1a6dd937dcfd2d8c55b207b86ba251",
  "private": false,
  "record": {
    "abstract": "We discuss the structure of the equilibrium states of a regularized\nKeller-Segel model describing the chemotaxis of bacterial populations. We\nconsider the limit of high degradation of the secreted chemical where\nanalytical results can be obtained. Below a critical effective temperature, the\nsystem experiences a second order phase transition from a homogeneous phase to\nan inhomogeneous phase formed by two domains with uniform concentration\nseparated by a thin interface (domain wall). We study the properties of the\ninterface and determine the bifurcation between a circular shape (spot) and a\nstripe as a function of the control parameters. We show the analogy with the\nstructure of Jupiter\u0027s Great red spot which also consists of two phases with\nuniform potential vorticity separated by a thin annular jet.",
    "arxiv_id": "physics/0607020",
    "authors": [
      "P. H. Chavanis"
    ],
    "categories": [
      "physics.bio-ph"
    ],
    "doi": "10.1140/epjb/e2007-00021-y",
    "journal_ref": "Eur. Phys. J. B, 54, 525 (2006)",
    "title": "Phase separation of bacterial colonies in a limit of high degradation.   Analogy with Jupiter\u0027s great red spot",
    "url": "https://arxiv.org/abs/physics/0607020"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9553c128-ff88-4f3a-a412-c4b49729ebd8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}