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    "title": "Density-enhanced collective oscillations couple atomic and molecular condensates",
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        "description": "The mechanism is inferred from finite-time population measurements and comparisons with approximate few-mode models, with losses, calibration uncertainty and trap-dependent density estimates. It does not establish that all reactions accelerate on cooling: the measured initial formation-rate coefficient fell below the condensation temperature. Earlier molecule condensation and reactive-coupling theories are inherited; entanglement and loss-free transfer were not demonstrated here. Exact2023 publication differences and quantitative model-prefactor discrepancies remain unresolved.",
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      "statement": "# Density-enhanced collective oscillations couple atomic and molecular condensates\n\nZhang, Nagata and colleagues observed collective atom–molecule reaction dynamics in an ultracold cesium gas near a narrow Feshbach resonance. After rapid molecule formation and heating, the atomic and molecular populations oscillated for several milliseconds. Higher condensate densities produced faster oscillations. The density scaling and an approximately 20 percent molecular fraction supported a model dominated by coherent three-body recombination. The family was first reported in 2022 and published in 2023.\n\n## Scientific scope\n\nThe mechanism is inferred from finite-time population measurements and comparisons with approximate few-mode models, with losses, calibration uncertainty and trap-dependent density estimates. It does not establish that all reactions accelerate on cooling: the measured initial formation-rate coefficient fell below the condensation temperature. Earlier molecule condensation and reactive-coupling theories are inherited; entanglement and loss-free transfer were not demonstrated here. Exact2023 publication differences and quantitative model-prefactor discrepancies remain unresolved.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nZhendong Zhang; Shu Nagata; Kaixuan Yao; Cheng Chin\n\nThese are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.\n\n\n\n## Original sources\n\n- [Many-body Chemical Reactions in a Quantum Degenerate Gas — author preprint v2 and complete supplementary material](https://arxiv.org/pdf/2207.08295v2)\n",
      "summary": "Zhang, Nagata and colleagues observed collective atom–molecule reaction dynamics in an ultracold cesium gas near a narrow Feshbach resonance. After rapid molecule formation and heating, the atomic and molecular populations oscillated for several milliseconds. Higher condensate densities produced faster oscillations. The density scaling and an approximately 20 percent molecular fraction supported a model dominated by coherent three-body recombination. The family was first reported in 2022 and published in 2023.",
      "title": "Density-enhanced collective oscillations couple atomic and molecular condensates"
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