{
  "abstract": "We theoretically describe and experimentally observe the reversibility of a nonequilibrium state in a unitary Fermi gas confined in a time-dependent trap. Unlike the equilibrium case, reversibility out of equilibrium imposes a stringent condition: the accumulated dynamical phase must be an integer multiple of $2π$, i.e., $Δϕ= 2ω_{0} s(T) = 2nπ$, where $ω_{0}$ is the initial trapping frequency and $s(T)$ is the rescaled time after a total evolution time $T$. We demonstrate the reversibility of an initial nonequilibrium state in an isotropic unitary Fermi gas by driving the optical trap through a round trip. We find two types of reversible pathways, the space-time scaling-invariant and polynomial shortcut-to-adiabaticity (STA) protocols. The phase condition restricts the round-trip time $T$ to discrete values, a distinguishing feature of nonequilibrium dynamics. Our work establishes a clear criterion for the quantum control of nonequilibrium many-body systems beyond linear response and provides practical pathways to reversibility.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.00563",
  "author_total": 7,
  "authors": [
    {
      "name": "Xi-Zhi Wu"
    },
    {
      "name": "Xiangchuan Yan"
    },
    {
      "name": "Xin Xie"
    },
    {
      "name": "Dali Sun"
    },
    {
      "name": "Seong-Ho Shinn"
    },
    {
      "name": "Adolfo del Campo"
    },
    {
      "name": "Kaijun Jiang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5f1k3sa3xqfkt.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.00563",
  "fulltext_url": null,
  "id": "5f1k3sa3xqfkt",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.00563",
  "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.quant-gas"
    ],
    [
      "arxiv",
      "physics.atom-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.00563",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5f1k3sa3xqfkt.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:20:59Z",
      "native_id": "2611.00563",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.00563"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "amo"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Reversibility of Nonequilibrium Dynamics in a Unitary Fermi Gas",
  "title_text": "Reversibility of Nonequilibrium Dynamics in a Unitary Fermi Gas",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:18Z",
  "url": "https://research.draconitic.com/paper/5f1k3sa3xqfkt",
  "venue": "arXiv",
  "versions": []
}