{
  "abstract": "Thermodynamic Uncertainty Relations (TURs) impose universal bounds linking current precision to entropy production in nonequilibrium systems. While general bounds like the Proesmans--Van den Broeck (PV) relation provide a broad framework, they often remain loose for processes characterized by renewal events. In this work, we derive a generalized entropic bound for current fluctuations in renewal-reward processes. By utilizing a rigorous variance decomposition within the framework of renewal-reward theory, we obtain a model-independent bound that is not only rigorous but tighter than the standard PV relation. Notably, in the linear-response regime, our bound correctly scales with the renewal rate and identifies a precision penalty arising from cycle-length fluctuations. These results provide a physically informative constraint on the precision of run-and-tumble-type dynamics and highlight the universal limits of transport in complex stochastic walkers.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.16339",
  "author_total": 2,
  "authors": [
    {
      "name": "Fatemeh Karimi"
    },
    {
      "name": "Farhad H. Jafarpour"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8pkn30sd5tqse.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.16339",
  "fulltext_url": null,
  "id": "8pkn30sd5tqse",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.16339",
  "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",
      "cond-mat.stat-mech"
    ],
    [
      "arxiv",
      "physics.bio-ph"
    ],
    [
      "openalex",
      "3109|Advanced Thermodynamics and Statistical Mechanics"
    ]
  ],
  "openalex": "W7164900967",
  "pdf_url": "https://arxiv.org/pdf/2606.16339",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8pkn30sd5tqse.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:31Z",
      "native_id": "2606.16339",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.16339"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.bio-ph",
      "subfield": "biological-medical"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.stat-mech",
      "subfield": "statistical-nonlinear"
    }
  ],
  "title": "Thermodynamic Uncertainty Relation For a Multi-Phase Alternating Renewal Random Walk",
  "title_text": "Thermodynamic Uncertainty Relation For a Multi-Phase Alternating Renewal Random Walk",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:31Z",
  "url": "https://research.draconitic.com/paper/8pkn30sd5tqse",
  "venue": "arXiv",
  "versions": []
}