{
  "abstract": "Whether a full counting statistical distribution preserves its universality class across a coherent-to-incoherent crossover is a fundamental question in open quantum systems. We resolve this for the infinite-$U$ Hubbard chain, showing that local density dephasing changes transport exponents without destroying the underlying non-Gaussian M-Wright spin fluctuations. Utilizing the exact spin-charge composition law inherent to impenetrable dynamics, we track the charge sector from ballistic flow to diffusive hydrodynamics. This dissipative crossover shifts the characteristic spin-transfer width from $t^{1/4}$ to $t^{1/8}$. Despite this altered scaling time, the central spin characteristic functions uniformly collapse onto a singular M-Wright scaling function, what we confirm using analytics as well as numerics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.23811",
  "author_total": 3,
  "authors": [
    {
      "name": "Cătălin Paşcu Moca"
    },
    {
      "name": "Ovidiu I. Pâţu"
    },
    {
      "name": "Balázs Dóra"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cnk6hnzdf206c.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.23811",
  "fulltext_url": null,
  "id": "cnk6hnzdf206c",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.23811",
  "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",
      "cond-mat.quant-gas"
    ],
    [
      "openalex",
      "3107|Quantum many-body systems"
    ]
  ],
  "openalex": "W7214048014",
  "pdf_url": "https://arxiv.org/pdf/2609.23811",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-20",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cnk6hnzdf206c.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.23811",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.23811"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "amo"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Robust Spin Universality Across a Ballistic-to-Diffusive Transport Crossover",
  "title_text": "Robust Spin Universality Across a Ballistic-to-Diffusive Transport Crossover",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/cnk6hnzdf206c",
  "venue": "arXiv",
  "versions": []
}