{
  "abstract": "Universal rheological properties of unentangled polymer melts are investigated through the stretch-orientation decomposition of polymer dynamics. By externalizing stretch from the explicit state of each Rouse mode, we construct a constitutive model with orientational kinetics that preserves the Rouse relaxation spectrum. The resulting model yields the observed steady-shear scalings of the shear viscosity and first normal-stress coefficient, predicts a finite second normal-stress coefficient, and approximately reproduces the Cox-Merz and Gleissle-Osaki rules. The derived steady-oscillatory shear correspondence further identifies an elastic contribution, associated with the first normal stress difference, that is absent from the conventional Cox-Merz rule.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.02884",
  "author_total": 4,
  "authors": [
    {
      "name": "Souta Miyamoto"
    },
    {
      "name": "Takeshi Sato"
    },
    {
      "name": "John J. Molina"
    },
    {
      "name": "Takashi Taniguchi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/agfmw15f3ds0v.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.02884",
  "fulltext_url": null,
  "id": "agfmw15f3ds0v",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.02884",
  "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.soft"
    ],
    [
      "arxiv",
      "physics.flu-dyn"
    ],
    [
      "openalex",
      "1507|Rheology and Fluid Dynamics Studies"
    ]
  ],
  "openalex": "W7220406534",
  "pdf_url": "https://arxiv.org/pdf/2610.02884",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/agfmw15f3ds0v.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:26:45Z",
      "native_id": "2610.02884",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.02884"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.soft",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:physics.flu-dyn",
      "subfield": "fluid-dynamics"
    }
  ],
  "title": "Orientational origin of nonlinear shear rheology in unentangled polymer melts",
  "title_text": "Orientational origin of nonlinear shear rheology in unentangled polymer melts",
  "type": "preprint",
  "updated_at": "2026-10-30T12:26:45Z",
  "url": "https://research.draconitic.com/paper/agfmw15f3ds0v",
  "venue": "arXiv",
  "versions": []
}