{
  "abstract": "We revisit the kinetic electrostatic electron nonlinear (KEEN) waves studied by Afeyan et. al in 2014 using a hybrid flow-mapping strategy that combines the characteristic mapping method (CMM) with numerical flow iteration (NuFi). The study extends the classical setup to dynamical ions, comparing their impact on the long-time KEEN dynamics with the static-ion case. To this end, we extend the CMM-NuFI framework with a multi-map strategy, assigning one map to the ion and one to the electron characteristic flow. The resulting problem exhibits a wide separation of spatial and temporal scales, driven by the fine structures generated by the ponderomotive force and by the large ion-to-electron mass ratio, which renders it computationally prohibitive for conventional grid-based methods. Our multi-map CMM-NuFI method efficiently resolves these disparate scales, enabling long-time simulations of KEEN dynamics with fully dynamical ions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.04941",
  "author_total": 5,
  "authors": [
    {
      "name": "Rostislav-Paul Wilhelm"
    },
    {
      "name": "Philipp Krah"
    },
    {
      "name": "Kai Schneider"
    },
    {
      "name": "Fabio Bacchini"
    },
    {
      "name": "Virginie Grandgirard"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a4p2exh731p16.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.04941",
  "fulltext_url": null,
  "id": "a4p2exh731p16",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.04941",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cs.NA"
    ],
    [
      "arxiv",
      "math.NA"
    ],
    [
      "arxiv",
      "physics.plasm-ph"
    ],
    [
      "openalex",
      "3107|Dust and Plasma Wave Phenomena"
    ]
  ],
  "openalex": "W7211867493",
  "pdf_url": "https://arxiv.org/pdf/2609.04941",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a4p2exh731p16.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:14Z",
      "native_id": "2609.04941",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.04941"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.NA",
      "subfield": "numerical-analysis"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.plasm-ph",
      "subfield": "plasma"
    }
  ],
  "title": "Revisiting kinetic electrostatic electron non-linear (KEEN) waves in the presence of dynamical ions",
  "title_text": "Revisiting kinetic electrostatic electron non-linear (KEEN) waves in the presence of dynamical ions",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:18Z",
  "url": "https://research.draconitic.com/paper/a4p2exh731p16",
  "venue": "arXiv",
  "versions": []
}