{
  "abstract": "Preparing ground and thermal states of quantum many-body systems is a central task in quantum simulation. Dissipative protocols have emerged as a promising solution for both near-term and fault-tolerant hardware, but most constructions rely on weak system-bath coupling, leading to slow cooling. Here, we construct cooling protocols at strong system-bath coupling, and demonstrate accurate state preparation within even a single cooling cycle. Our protocols combine dynamically ramped ancilla energy levels with time-dependent couplings to optimize the trade-off between cooling error and physical time. For a general class of free-fermion systems, we reduce the dynamics exactly to a two-level scattering problem: ground-state cooling becomes a control problem of maximizing resonant excitation transfer while suppressing non-adiabatic heating. We then construct a family of ``Möbius-Ingham'' protocols, which reach optimal error scaling for gapless spectra and almost-exponential suppression of the leading heating error for gapped spectra, as a function of the cycle period. In our free-fermion benchmarks, Möbius-Ingham cooling lies on the Pareto frontier between steady-state error and cooling time among the controls tested. We further demonstrate its effectiveness in interacting Ising and $t$-$V$ chains and the two-dimensional Fermi-Hubbard model. Finally, we extend our construction to Gibbs state preparation, showing how free-fermion thermal states can be prepared in a single cycle.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.07021",
  "author_total": 5,
  "authors": [
    {
      "name": "Liang-Hong Mo"
    },
    {
      "name": "Jerome Lloyd"
    },
    {
      "name": "Yuxuan Zhang"
    },
    {
      "name": "Dmitry A. Abanin"
    },
    {
      "name": "Biao Lian"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7q6w4pa6g7dz5.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.07021",
  "fulltext_url": null,
  "id": "7q6w4pa6g7dz5",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.07021",
  "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.str-el"
    ],
    [
      "arxiv",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.07021",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7q6w4pa6g7dz5.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T18:21:30Z",
      "native_id": "2611.07021",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.07021"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.str-el",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Single-shot ground-state preparation via strongly coupled baths",
  "title_text": "Single-shot ground-state preparation via strongly coupled baths",
  "type": "preprint",
  "updated_at": "2026-11-09T00:20:39Z",
  "url": "https://research.draconitic.com/paper/7q6w4pa6g7dz5",
  "venue": "arXiv",
  "versions": []
}