{
  "abstract": "We investigate late-time Barrow holographic dark energy (BHDE) with Ricci cutoff in $f(Q,L_m)=Q+αQ^n-2L_m$ gravity. The $Q^n$ term modifies the symmetric-teleparallel geometry, while $Δ$ deforms holographic energy via entropy-area relation. Linear matter Lagrangian allows separate identification of geometric and holographic effects. Modified Friedmann equations with Ricci-cutoff BHDE yield a closed first-order equation for $E(z)=H(z)/H_0$, solved numerically. The model evolves from matter domination to late-time acceleration. Increasing $n$ makes $w_{\\mathrm{DE},0}$ less negative, raises $z_t$, lowers $j_0$; increasing $Δ$ makes $w_{\\mathrm{DE},0}$ and $q_0$ more negative, raises $z_t$ and $j_0$. Calibrating $\\mathcal{C}_{B,\\mathrm{ref}}$ with $q_{0,\\mathrm{ref}}\\simeq -0.527$ gives $w_{\\mathrm{DE},0}\\simeq -1.003$, $z_t\\simeq0.442$, $j_0\\simeq1.486$. Two-dimensional $(n,Δ)$ maps show opposite effects on $w_{\\mathrm{DE},0}$ but same direction on acceleration onset. We compare expansion histories with 36 cosmic-chronometer measurements ($0.07\\leq z\\leq1.965$), using DESI covariance and asymmetric error at $z=0.8$. Comparison is conditional for fixed trajectories, without fitting; Hubble statistic varies modestly. Results provide a consistent background realization of Ricci-cutoff BHDE in $f(Q,L_m)$ gravity and motivate future perturbation and multi-probe studies.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.01629",
  "author_total": 4,
  "authors": [
    {
      "name": "S. Tavakoli"
    },
    {
      "name": "T. Golanbari"
    },
    {
      "name": "B. Malekolkalami"
    },
    {
      "name": "Kh. Saaidi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/75wyynfm472cf.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.01629",
  "fulltext_url": null,
  "id": "75wyynfm472cf",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.01629",
  "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",
      "physics.gen-ph"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7207760143",
  "pdf_url": "https://arxiv.org/pdf/2609.01629",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/75wyynfm472cf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:16Z",
      "native_id": "2609.01629",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.01629"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Cosmology and Gravitation Theories",
      "subfield": "cosmology"
    }
  ],
  "title": "Barrow Holographic Dark Energy with a Ricci Cutoff in Power-Law $f(Q,L_m)$ Gravity: Late-Time Cosmological Dynamics",
  "title_text": "Barrow Holographic Dark Energy with a Ricci Cutoff in Power-Law f(Q,L_m) Gravity: Late-Time Cosmological Dynamics",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:16Z",
  "url": "https://research.draconitic.com/paper/75wyynfm472cf",
  "venue": "arXiv",
  "versions": []
}