{
  "abstract": "We introduce Active Model H$^{-}$, a scalar phase-field model of non-equilibrium phase separation in the overdamped hydrodynamic limit, and show that it produces filamentous networks with enhanced connections and arrested coarsening, a morphology not observed in existing scalar active field theories. Isolated filaments are unstable to spontaneous bending, and the resulting curvature drives self-propulsion towards the convex side, causing them to collide and assemble into a percolating network. The networks are locally non-equilibrium, with anomalously curved edges, disordered vertex angles and heterogeneous topological charge, yet recover Lewis's law macroscopically. Under noise they show balanced break and reform dynamics.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.19800",
  "author_total": 3,
  "authors": [
    {
      "name": "Elena Lucas"
    },
    {
      "name": "Varun Venkatesh"
    },
    {
      "name": "Amin Doostmohammadi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4e12kbrrajc12.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.19800",
  "fulltext_url": null,
  "id": "4e12kbrrajc12",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.19800",
  "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.soft"
    ],
    [
      "openalex",
      "2505|Solidification and crystal growth phenomena"
    ]
  ],
  "openalex": "W7213579962",
  "pdf_url": "https://arxiv.org/pdf/2609.19800",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4e12kbrrajc12.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:19Z",
      "native_id": "2609.19800",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.19800"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.soft",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Spontaneous filament formation and network self-assembly via active phase separation",
  "title_text": "Spontaneous filament formation and network self-assembly via active phase separation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:19Z",
  "url": "https://research.draconitic.com/paper/4e12kbrrajc12",
  "venue": "arXiv",
  "versions": []
}