{
  "abstract": "Collective spin motion can reshape magnon spectra by providing a dynamical magnetic background. Magnetic spirals offer a particularly clean setting, as they simultaneously host propagating helimagnons and a gapless Goldstone mode, i.e., the sliding of the spiral. Here, we show that once a helimagnon is excited and the spiral slides, the motion, which rotates the local spin frame, produces a thresholdless rotational Doppler shift of the helimagnon spectrum, with even winding for the linear mode and odd winding for its second harmonic. Stronger excitation generates one finite-momentum phason. Mixing of that phason with the helimagnon produces a helimagnon frequency comb only inside a finite driving window, spaced by the phason frequency fixed by the spiral length rather than by the sliding rate. These two scales are separable in a microwave experiment: the Doppler offset tracks the sliding velocity, whereas the comb spacing scales inversely with the length of the spiral.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.08873",
  "author_total": 7,
  "authors": [
    {
      "name": "Yang Liu"
    },
    {
      "name": "Jie Liu"
    },
    {
      "name": "Tianci Gong"
    },
    {
      "name": "Zhaozhuo Zeng"
    },
    {
      "name": "Xiaoping Gao"
    },
    {
      "name": "Kai Chang"
    },
    {
      "name": "Peng Yan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/11xgx08sfscsn.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.08873",
  "fulltext_url": null,
  "id": "11xgx08sfscsn",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.08873",
  "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.mtrl-sci"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.08873",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-06",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/11xgx08sfscsn.ris",
  "sources": [
    {
      "first_seen": "2026-11-10T06:21:04Z",
      "native_id": "2611.08873",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.08873"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mtrl-sci",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Rotational Doppler Effect and Helimagnon Frequency Comb in Sliding Magnetic Spirals",
  "title_text": "Rotational Doppler Effect and Helimagnon Frequency Comb in Sliding Magnetic Spirals",
  "type": "preprint",
  "updated_at": "2026-11-10T06:21:04Z",
  "url": "https://research.draconitic.com/paper/11xgx08sfscsn",
  "venue": "arXiv",
  "versions": []
}