{
  "abstract": "Higher-frequency power in Hall-thruster plume-probe signals can arise from both harmonics of a repeatable breathing waveform and fluctuations about it, complicating spectral interpretation. We decompose 197 paired records from 20 sequentially sampled probe-pair geometries at one operating condition, estimating each phaseconditioned waveform from other records at the same geometry. The residual accounts for 87.1% and 99.7% of measured power in the 0.2-0.5 and 0.5-1 MHz bands, respectively, as medians across geometries. The repeatable waveform, however, reproduces the principal breathing-harmonic bicoherence structure. Residual power remains modulated by breathing phase after waveform removal, exceeding geometry-specific 95thpercentile circular-shift thresholds in both bands at all 20 geometries. Residual bicoherence is substantially weaker than that of the measured signal but exceeds record-specific random-phase thresholds in 195 of 197 records. An exact component expansion further shows that the all-waveform term dominates a specified signed third-order statistic over the fixed 50-80 kHz band near the second breathing harmonic. These results distinguish band-power allocation from harmonic organization within the evaluated frequency ranges. The attribution concerns uncalibrated probe-chain signals and does not identify distinct physical modes or measure energy-transfer rates. The findings motivate assessing repeatable-waveform contributions before interpreting breathing-harmonic bicoherence as evidence of interactions among residual fluctuations.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.11348",
  "author_total": 7,
  "authors": [
    {
      "name": "Zilong Peng"
    },
    {
      "name": "Baisheng Wang"
    },
    {
      "name": "Zhongping Zhao"
    },
    {
      "name": "Yao Tang"
    },
    {
      "name": "Yinjian Zhao"
    },
    {
      "name": "Daren Yu"
    },
    {
      "name": "Ming Zeng"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0spg62gn540cd.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.11348",
  "fulltext_url": null,
  "id": "0spg62gn540cd",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.11348",
  "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",
      "physics.plasm-ph"
    ],
    [
      "openalex",
      "2208|Plasma Diagnostics and Applications"
    ]
  ],
  "openalex": "W7221117953",
  "pdf_url": "https://arxiv.org/pdf/2610.11348",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0spg62gn540cd.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:54Z",
      "native_id": "2610.11348",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.11348"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.plasm-ph",
      "subfield": "plasma"
    }
  ],
  "title": "Contributions of the breathing waveform and residual fluctuations to power and higher-order spectra in a Hall-thruster plume",
  "title_text": "Contributions of the breathing waveform and residual fluctuations to power and higher-order spectra in a Hall-thruster plume",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:54Z",
  "url": "https://research.draconitic.com/paper/0spg62gn540cd",
  "venue": "arXiv",
  "versions": []
}