{
  "abstract": "In multilayer quantum Hall systems, when the layer separation is sufficiently small, the interplay between intralayer and interlayer Coulomb interactions can lead to exotic, multi-component, many-body states. A particular example is the even-denominator fractional quantum Hall state (FQHS) at total filling factor $ν=1/2$ in bilayer systems with negligible interlayer tunneling. This state can be understood as a generalized Laughlin state described by the Halperin-Laughlin $Ψ_{331}$ wavefunction. While such correlated states have been extensively explored in bilayers, little is known about their counterparts in systems with more than two layers. Here, we investigate a trilayer two-dimensional electron system confined to ultrahigh-quality GaAs triple quantum wells. We observe an exotic FQHS at total filling factor $ν=5/7$, evinced by a deep longitudinal resistance minimum and a quantized Hall plateau, when the side layers have a density larger than the middle layer and $d/l_B \\simeq 2.2$ ($d$ is the interlayer distance and $l_B$ the magnetic length). This state is naturally interpreted as the long-predicted trilayer, generalized Laughlin ($Ψ_{33311}$) state, characterized by $ν=1/3$-like intralayer correlation within each layer and $ν=1$-like interlayer correlation between neighboring layers. Our observation establishes a new member of the Halperin-Laughlin many-body states that extends interlayer coherence to three coupled layers.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Phys. Rev. Lett. 137, 136504 (2026)",
  "arxiv": "2609.26916",
  "author_total": 7,
  "authors": [
    {
      "name": "Chengyu Wang"
    },
    {
      "name": "C. T. Tai"
    },
    {
      "name": "N. Toemtrisna"
    },
    {
      "name": "A. Gupta"
    },
    {
      "name": "L. N. Pfeiffer"
    },
    {
      "name": "K. W. Baldwin"
    },
    {
      "name": "M. Shayegan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bftsraghwkaq6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.26916",
  "fulltext_url": null,
  "id": "bftsraghwkaq6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.26916",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2609.26916",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bftsraghwkaq6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.26916",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.26916"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Interlayer-correlated fractional quantum Hall state in a trilayer electron system",
  "title_text": "Interlayer-correlated fractional quantum Hall state in a trilayer electron system",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/bftsraghwkaq6",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/4bpx-3mwm",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}