{
  "abstract": "Finite-bandwidth reservoir engineering can suppress unwanted transitions in a quantum thermal machine, but a physical filter also introduces a finite response time. We study this competition in a continuous three-level heat engine whose hot environment couples parasitically to the cold transition. The corresponding three-state rate network is solved exactly, showing that the parasitic transition produces a hot-to-cold thermodynamic short circuit and yielding a closed threshold for the loss of positive-power operation. We then retain a damped auxiliary mode explicitly as a physical spectral filter. Its Lorentzian response suppresses the detuned parasitic transition, whereas excessive narrowing limits the useful energy throughput. Independent local-GKSL and nonsecular Bloch--Redfield calculations both recover the no-leak Markovian engine in the weak-coupling limit and predict a finite maximum-power bandwidth, although its precise location is model dependent. A frequency-resolved Lorentzian-rate reduction, by contrast, has no interior optimum. The resulting design principle is that spectral selectivity can protect the useful thermodynamic cycle, but a real filter cannot be narrowed without a dynamical throughput cost.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Entropy 2026, Volume 28, Issue 10, 1081",
  "arxiv": "2609.40038",
  "author_total": 2,
  "authors": [
    {
      "name": "Gilberto Aparecido Prataviera"
    },
    {
      "name": "Marcos César de Oliveira"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ctf5zk3sznwjw.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.40038",
  "fulltext_url": null,
  "id": "ctf5zk3sznwjw",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.40038",
  "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",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.40038",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ctf5zk3sznwjw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:25:49Z",
      "native_id": "2609.40038",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.40038"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Finite-Bandwidth Protection of a Three-Level Quantum Heat Engine Against Parasitic Heat Leaks",
  "title_text": "Finite-Bandwidth Protection of a Three-Level Quantum Heat Engine Against Parasitic Heat Leaks",
  "type": "preprint",
  "updated_at": "2026-10-30T12:25:49Z",
  "url": "https://research.draconitic.com/paper/ctf5zk3sznwjw",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.3390/e28101081",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}