{
  "abstract": "Rhombohedral multilayer graphene hosts a distinctive low-energy electronic structure in which strong Coulomb interactions and nontrivial quantum geometry intertwine to generate exotic quantum states. Recent experiments reported signatures of chiral superconductivity in electron-doped rhombohedral multilayer graphene within the spin- and valley-polarized regime. Here we map the normal-state fermiology surrounding chiral superconductivity in rhombohedral pentalayer graphene. Quantum oscillation measurements reveal an electrically controlled Lifshitz transition between a simply-connected circular quarter-metal Fermi surface and an annular quarter-metal Fermi surface. The Lifshitz boundary itself shifts with perpendicular magnetic field, consistent with the strongly momentum-dependent orbital magnetic moment of the low-energy band. Approaching the transition from either side, the electron effective mass becomes strongly enhanced, implying the formation of a nearly dispersionless band bottom and a strongly reduced kinetic-energy scale. This singular electronic structure produces a regime of exceptionally strong instability in which chiral superconductivity competes with Wigner crystalline phases and reentrant quantum Hall states. In particular, two superconducting regions with signatures of orbital time-reversal-symmetry breaking lie on opposite sides of the Lifshitz boundary and have comparable transition temperatures, yet the annular-side state is suppressed by a substantially smaller perpendicular magnetic field. Our calculation finds comparable chiral pairing tendencies on the two parent Fermi surfaces while producing a much lower orbital-Zeeman pair-breaking scale and an additional finite-momentum pairing tendency for the annular state. These results identify Fermi-surface topology as a key control parameter for chiral superconductivity in rhombohedral graphene.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.29873",
  "author_total": 22,
  "authors": [
    {
      "name": "Chuanqi Zheng"
    },
    {
      "name": "Cheng Xu"
    },
    {
      "name": "Chushan Li"
    },
    {
      "name": "Chenyu Zhang"
    },
    {
      "name": "Zijing Zhang"
    },
    {
      "name": "Kenji Watanabe"
    },
    {
      "name": "Takashi Taniguchi"
    },
    {
      "name": "Hao Yang"
    },
    {
      "name": "Dandan Guan"
    },
    {
      "name": "Liang Liu"
    },
    {
      "name": "Shiyong Wang"
    },
    {
      "name": "Yaoyi Li"
    },
    {
      "name": "Hao Zheng"
    },
    {
      "name": "Canhua Liu"
    },
    {
      "name": "Jinfeng Jia"
    },
    {
      "name": "Shengwei Jiang"
    },
    {
      "name": "Zhiwen Shi"
    },
    {
      "name": "Guorui Chen"
    },
    {
      "name": "Fengcheng Wu"
    },
    {
      "name": "Yang Zhang"
    },
    {
      "name": "Tingxin Li"
    },
    {
      "name": "Xiaoxue Liu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/28epcdgfjb600.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.29873",
  "fulltext_url": null,
  "id": "28epcdgfjb600",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.29873",
  "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.mes-hall"
    ],
    [
      "openalex",
      "3104|Physics of Superconductivity and Magnetism"
    ]
  ],
  "openalex": "W7204920690",
  "pdf_url": "https://arxiv.org/pdf/2608.29873",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/28epcdgfjb600.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:41Z",
      "native_id": "2608.29873",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.29873"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Chiral superconductors and competing states across a Lifshitz transition in rhombohedral pentalayer graphene",
  "title_text": "Chiral superconductors and competing states across a Lifshitz transition in rhombohedral pentalayer graphene",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:41Z",
  "url": "https://research.draconitic.com/paper/28epcdgfjb600",
  "venue": "arXiv",
  "versions": []
}