{
  "annotation_id": "e91a92c5-1333-4fff-86c5-4fdf91d13c38",
  "date_created": "2026-03-02T18:00:53.832000Z",
  "date_modified": "2026-03-02T18:00:53.832000Z",
  "file_hash": "34882888f764f82cdfa1c36a82a46bfd873d6446a55be5d674df18df0e7c6ee2",
  "private": false,
  "record": {
    "abstract": "Nonlinear self-modulation of the dust acoustic waves is studied, in the\npresence of non-thermal (non-Maxwellian) ion and electron populations. By\nemploying a multiple scale technique, a nonlinear Schrodinger-type equation\n(NLSE) is derived for the wave amplitude. The influence of non-thermality, in\naddition to obliqueness (between the propagation and modulation directions), on\nthe conditions for modulational instability to occur is discussed. Different\ntypes of localized solutions (envelope excitations) which may possibly occur\nare discussed, and the dependence of their characteristics on physical\nparameters is traced. The ion deviation from a Maxwellian distribution comes\nout to be more important than the electron analogous deviation alone. Both\nyield a de-stabilizing effect on (the amplitude of) DAWs propagating in a dusty\nplasma with negative dust grains. The opposite effect, namely a tendency\ntowards amplitude stabilization, is found for the case of positively charged\ndust presence in the plasma.",
    "arxiv_id": "physics/0411112",
    "authors": [
      "Ioannis Kourakis",
      "P. K. Shukla"
    ],
    "categories": [
      "physics.plasm-ph"
    ],
    "doi": "10.1017/S0022377804003526",
    "title": "Modulated dust-acoustic wave packets in a plasma with non-isothermal   electrons and ions",
    "url": "https://arxiv.org/abs/physics/0411112"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0de56776-58e9-4a4d-95ea-cbc017791519",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}