{
  "abstract": "Understanding how pairing correlations in superconductors evolve out of equilibrium is a central challenge in quantum many-body physics. In systems with $s$-wave pairing, the character of Cooper pairing evolves continuously from a BCS regime of weakly bound, overlapping pairs to a BEC regime of tightly bound molecules, each with distinct excitation spectra. Here we realize and probe pairing dynamics across these regimes using cold, non-degenerate $^{87}$Rb atoms coupled to an optical cavity with Floquet dressing. Our cavity-QED platform emulates fermionic superfluids through a mapping onto Anderson pseudospins, while optical and microwave control tunes the ratio of interactions to single-particle energies, providing a flexible approach complementary to ultracold Feshbach and ultrafast solid-state platforms. Following a quench, we observe persistent pairing and transient oscillations of the order parameter associated with a collective amplitude (Higgs) mode. We find that the decay of these oscillations sharply distinguishes weak- and strong-pairing regimes: in the weak-pairing regime, oscillations decay with a power-law exponent $|α|=0.65(8)$, whereas in the strong-pairing regime the decay is substantially faster, with $|α|>1$. The oscillation frequency is set by the minimum quasiparticle excitation energy, directly linking nonequilibrium dynamics to the underlying excitation spectrum. Our results establish nonequilibrium dynamics as a direct probe of pairing character and collective excitations in interacting quantum systems.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.14171",
  "author_total": 9,
  "authors": [
    {
      "name": "Chitose Maruko"
    },
    {
      "name": "Haoqing Zhang"
    },
    {
      "name": "Eliot A. Bohr"
    },
    {
      "name": "Leah Huzjak"
    },
    {
      "name": "Anjun Chu"
    },
    {
      "name": "Victor Gurarie"
    },
    {
      "name": "Chengyi Luo"
    },
    {
      "name": "Ana Maria Rey"
    },
    {
      "name": "James K. Thompson"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dsw9p98ykbkjh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.14171",
  "fulltext_url": null,
  "id": "dsw9p98ykbkjh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.14171",
  "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",
      "cond-mat.quant-gas"
    ],
    [
      "arxiv",
      "physics.atom-ph"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "3107|Cold Atom Physics and Bose-Einstein Condensates"
    ]
  ],
  "openalex": "W7221775979",
  "pdf_url": "https://arxiv.org/pdf/2610.14171",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/dsw9p98ykbkjh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2610.14171",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.14171"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "amo"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.quant-gas",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Experimental observation of Higgs oscillations and their power-law decay across pairing regimes in a cavity QED quantum simulator",
  "title_text": "Experimental observation of Higgs oscillations and their power-law decay across pairing regimes in a cavity QED quantum simulator",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/dsw9p98ykbkjh",
  "venue": "arXiv",
  "versions": []
}