{
  "abstract": "We here focus on small-scale dynamics of collisionless plasmas by employing a generalized kinetic Langevin framework driven by a stochastic time-correlated forcing. Our investigation captures the steady-state Fluctuation-Dissipation Relation (FDR) where the energy injection at low frequencies is due to the time-correlated forcing and the small-scale energy conversion occurs via Landau damping, the latter --though formally reversible-- acting as an effective dissipation mechanism. We analytically extract the resulting asymptotic spectral scalings across multiple physical regimes and characterize the velocity-space cascade by decomposing the plasma distribution function with Hermite polynomials. The framework is then generalized to a multi-scale forcing scenario in which correlation rates are distributed according to a power-law distribution. This extension provides closed-form analytical expressions that may serve to interpret spacecraft in-situ observations. All analytical predictions are successfully validated through direct numerical integrations of the underlying kinetic equations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.29709",
  "author_total": 9,
  "authors": [
    {
      "name": "Fabio Moretti"
    },
    {
      "name": "Oreste Pezzi"
    },
    {
      "name": "Simone Benella"
    },
    {
      "name": "Giuseppe Consolini"
    },
    {
      "name": "Andrea Larosa"
    },
    {
      "name": "Fabio Lepreti"
    },
    {
      "name": "Luca Sorriso-Valvo"
    },
    {
      "name": "Francesco Valentini"
    },
    {
      "name": "Vincenzo Carbone"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/eatnhwsav91tr.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.29709",
  "fulltext_url": null,
  "id": "eatnhwsav91tr",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.29709",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.plasm-ph"
    ],
    [
      "openalex",
      "3103|Solar and Space Plasma Dynamics"
    ]
  ],
  "openalex": "W7223250445",
  "pdf_url": "https://arxiv.org/pdf/2610.29709",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/eatnhwsav91tr.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:34:19Z",
      "native_id": "2610.29709",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.29709"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.plasm-ph",
      "subfield": "plasma"
    }
  ],
  "title": "Kinetic Fluctuation-Dissipation Relation in collisionless plasmas: a correlated noise source",
  "title_text": "Kinetic Fluctuation-Dissipation Relation in collisionless plasmas: a correlated noise source",
  "type": "preprint",
  "updated_at": "2026-10-30T12:34:19Z",
  "url": "https://research.draconitic.com/paper/eatnhwsav91tr",
  "venue": "arXiv",
  "versions": []
}