{
  "abstract": "Rotational symmetry ($C_n$) constrains chiral phonons, but how other symmetries affect their interactions remains largely unexplored. We perform a theoretical and computational study of chiral phonon coupling to parity-time ($PT$)-degenerate electron doublets in $2H$-bilayer MoS$_2$. Although $PT$ suppresses phonon singlet chirality, chiral phonon doublets can helically interact with $PT$-partner electronic states via a mechanism similar to pseudospin. Selection rules are then analyzed with the interplay of $PT$ and $C_3$. Our computational results of $2H$-bilayer MoS$_2$ suggest chiral phonons may be used to resolve intravalley electronic states in $PT$ systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.34830",
  "author_total": 2,
  "authors": [
    {
      "name": "Fred Sun"
    },
    {
      "name": "Jia-An Yan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c0tw6q1y0ryk1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.34830",
  "fulltext_url": null,
  "id": "c0tw6q1y0ryk1",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.34830",
  "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"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "2505|2D Materials and Applications"
    ]
  ],
  "openalex": "W7223844858",
  "pdf_url": "https://arxiv.org/pdf/2610.34830",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-26",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c0tw6q1y0ryk1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.34830",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.34830"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Helicity-Selective Electron-Phonon Coupling Between $PT$-Partner States in $2H$-bilayer MoS$_2$",
  "title_text": "Helicity-Selective Electron-Phonon Coupling Between PT-Partner States in 2H-bilayer MoS_2",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/c0tw6q1y0ryk1",
  "venue": "arXiv",
  "versions": []
}