{
  "abstract": "Although half-wave plates (HWPs) are becoming a popular choice of polarization modulators for cosmic microwave background (CMB) experiments, their non-idealities can introduce systematic effects that should be carefully characterized and mitigated. One possible mitigation strategy is to incorporate information about the non-idealities at the map-making level, which helps to reduce the HWP-induced distortions of the reconstructed CMB. Nevertheless, the non-idealities can only be known with finite precision. In this paper we investigate the consequences of discrepancies between their true frequency profiles and those assumed by the map-maker. We present an end-to-end framework, including a blind component-separation step, and use it to translate these discrepancies into a bias on the tensor-to-scalar ratio, $r$, for the LiteBIRD satellite mission. We subsequently derive realistic and conservative measurement requirements for accurately characterizing the HWP non-idealities to ensure they do not compromise LiteBIRD's ambitious scientific goals. We find that the obtained results are robust against sky models with varying complexity.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2602.02410",
  "author_total": 104,
  "authors": [
    {
      "name": "N Raffuzzi"
    },
    {
      "name": "A Carones"
    },
    {
      "name": "M Monelli"
    },
    {
      "name": "S Giardiello"
    },
    {
      "name": "L Pagano"
    },
    {
      "name": "Y Sakurai"
    },
    {
      "name": "H Ishino"
    },
    {
      "name": "Erwan Allys"
    },
    {
      "name": "A Anand"
    },
    {
      "name": "J. Aumont"
    },
    {
      "name": "A.J. Banday"
    },
    {
      "name": "G. Barbieri Ripamonti"
    },
    {
      "name": "R.B Barreiro"
    },
    {
      "name": "N Bartolo"
    },
    {
      "name": "S Basak"
    },
    {
      "name": "A Basyrov"
    },
    {
      "name": "Anaïs Besnard"
    },
    {
      "name": "M Bortolami"
    },
    {
      "name": "T Brinckmann"
    },
    {
      "name": "F Cacciotti"
    },
    {
      "name": "E Calabrese"
    },
    {
      "name": "P Campeti"
    },
    {
      "name": "F Carralot"
    },
    {
      "name": "F.J Casas"
    },
    {
      "name": "J Chandran"
    },
    {
      "name": "K Cheung"
    },
    {
      "name": "M Citran"
    },
    {
      "name": "L Clermont"
    },
    {
      "name": "F Columbro"
    },
    {
      "name": "A Coppolecchia"
    },
    {
      "name": "F Cuttaia"
    },
    {
      "name": "P de Bernardis"
    },
    {
      "name": "T de Haan"
    },
    {
      "name": "M de Lucia"
    },
    {
      "name": "P Diego-Palazuelos"
    },
    {
      "name": "H.K Eriksen"
    },
    {
      "name": "F Finelli"
    },
    {
      "name": "C Franceschet"
    },
    {
      "name": "U Fuskeland"
    },
    {
      "name": "G Galloni"
    },
    {
      "name": "M Galloway"
    },
    {
      "name": "M Gerbino"
    },
    {
      "name": "M Gervasi"
    },
    {
      "name": "T Ghigna"
    },
    {
      "name": "C Gimeno-Amo"
    },
    {
      "name": "A Gruppuso"
    },
    {
      "name": "M Hazumi"
    },
    {
      "name": "S Henrot-Versillé"
    },
    {
      "name": "L.T Hergt"
    },
    {
      "name": "E Hivon"
    },
    {
      "name": "K Kohri"
    },
    {
      "name": "L Lamagna"
    },
    {
      "name": "M Lattanzi"
    },
    {
      "name": "C Leloup"
    },
    {
      "name": "F Levrier"
    },
    {
      "name": "A.I Lonappan"
    },
    {
      "name": "M López-Caniego"
    },
    {
      "name": "G Luzzi"
    },
    {
      "name": "J Macias-Perez"
    },
    {
      "name": "V Maranchery"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/aedtpzemgdkj1.bib",
  "cited_by": 0,
  "doi": "10.1088/1475-7516/2026/08/053",
  "fulltext_url": null,
  "id": "aedtpzemgdkj1",
  "issns": [],
  "landing_url": "https://hal.science/hal-05514905v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
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      "0.phys"
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      "openalex",
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  "openalex": "W7204472936",
  "pdf_url": "https://hal.science/hal-05514905/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-31",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/aedtpzemgdkj1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:21Z",
      "native_id": "hal-05514905",
      "source": "hal",
      "url": "https://hal.science/hal-05514905v1"
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  "subjects": [
    {
      "field": "astronomy",
      "origin": "hal:1.phys.astr",
      "subfield": "general"
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    {
      "field": "physics",
      "origin": "hal:2.phys.phys.phys-ins-det",
      "subfield": "applied-instrumentation"
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  ],
  "title": "Mitigating half-wave plate systematics at the map-making level: calibration requirements for LiteBIRD",
  "title_text": "Mitigating half-wave plate systematics at the map-making level: calibration requirements for LiteBIRD",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:21Z",
  "url": "https://research.draconitic.com/paper/aedtpzemgdkj1",
  "venue": "JCAP",
  "versions": []
}