{
  "abstract": "The Mpemba effect occurs when a state initially farther from stationarity overtakes a closer one during relaxation. We show that this anomalous ordering can coexist with superradiant emission in a collectively damped ensemble of two-level systems. In the symmetric Dicke manifold, zero-temperature decay is a population cascade with rates $Γn(N-n+1)$. We construct the sparse family $ρ_A=|\\lceil2N/3\\rceil\\rangle\\langle\\lceil2N/3\\rceil|$ and $ρ_B=(|0\\rangle\\langle0|+|N\\rangle\\langle N|)/2$. Although $A$ is initially more energetic and more distant from the stationary ground state, it crosses $B$ in both energy and trace distance because it starts in a more radiative region of the Dicke ladder. Both states develop emission peaks larger than their independent-emitter references. The crossing persists for all examined sizes from $N=6$ to $60$, while the peak intensities show an effective scaling close to $N^2$. The same pair has no crossing under independent decay, identifying collective radiative kinetics as the origin of the effect.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.25359",
  "author_total": 6,
  "authors": [
    {
      "name": "Matheus G. H. Santos"
    },
    {
      "name": "Hugo Sanchez"
    },
    {
      "name": "Italo M. de Araújo"
    },
    {
      "name": "Luis Felipe A. da Silva"
    },
    {
      "name": "Miled H. Y. Moussa"
    },
    {
      "name": "Norton G. de Almeida"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5j1y9fstksyjs.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.25359",
  "fulltext_url": null,
  "id": "5j1y9fstksyjs",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.25359",
  "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",
      "quant-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.25359",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5j1y9fstksyjs.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2609.25359",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.25359"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Superradiant Mpemba Relaxation in a Dicke Ladder",
  "title_text": "Superradiant Mpemba Relaxation in a Dicke Ladder",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/5j1y9fstksyjs",
  "venue": "arXiv",
  "versions": []
}