{
  "abstract": "Far-field photoluminescence probes only the light-cone corner of an exciton's momentum content, whereas energy transfer to nearby graphene integrates in-plane momenta up to the inverse spacer thickness $1/z$. For a WSe$_2$/MoSe$_2$ heterobilayer we build the transition polarization $\\bm{P}_n(\\qv)$ of each localized moiré exciton from the registry-dependent vector dipole texture and use each $\\bm{P}_n$ for both baths. The two baths rank the states differently: the graphene-rate ratios differ from the optical ones, their ordering inverts with spacer thickness, and the distance exponents at $z=10$\\,nm spread by more than two units. These ratios are independent of the transition-dipole prefactor. Within the $C_3$-symmetric leading-harmonic model the chiral $p_+$ and $d_-$ states are also dark at normal incidence yet transfer to graphene at rates comparable to the bright ground state. Their graphene rate depends on the sign of the texture phase, a quantity invisible in far-field emission, which we determine from first principles. In a device this prediction requires a splitting, larger than the symmetry-breaking mixing, that protects the chiral partners. Graphene proximity thus acts as a momentum-selective near-field probe of moiré excitons, and we propose its use as a practical spectroscopy.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.33989",
  "author_total": 1,
  "authors": [
    {
      "name": "Katsunori Wakabayashi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dcbkrf0jaxhab.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.33989",
  "fulltext_url": null,
  "id": "dcbkrf0jaxhab",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.33989",
  "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.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7223986733",
  "pdf_url": "https://arxiv.org/pdf/2610.33989",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-25",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dcbkrf0jaxhab.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.33989",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.33989"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Momentum-selective graphene spectroscopy of moiré excitons",
  "title_text": "Momentum-selective graphene spectroscopy of moiré excitons",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:17Z",
  "url": "https://research.draconitic.com/paper/dcbkrf0jaxhab",
  "venue": "arXiv",
  "versions": []
}