光学腔体中非热老化超冷却液体
Non-Thermal Aging of Supercooled Liquids in Optical Cavities
AI总结：
研究通过光学腔体实现非热老化，利用光选择性激发振动模式，使液体结构温度降低，提出腔体构型反馈冷却方法，连接玻璃物理与强光物质相互作用。
摘要：
老化是无序材料如玻璃、塑料和药品的特征，通常限制长期稳定性和性能。在实践中，老化通过温度或压力等全局参数控制，作用于整个系统。本文介绍了一种根本不同的方法，利用光学腔体中的光作为精确且选择性的工具来引导老化动态。我们显示，与光学腔体耦合的超冷却液体经历非热老化，其中老化由光诱导而非热淬火。光选择性激发快速振动模式，而浴温保持不变，重塑液体的慢结构动力学。因此，与环境相比，腔体耦合的液体表现出更冷的结构。利用这种有效结构冷却与时间尺度分离，我们引入了腔体构型反馈（C²F）冷却，利用腔体耦合逐步达到更低的结构温度。我们的结果建立了玻璃物理与强光物质相互作用之间的联系，并开辟了光学控制老化、玻璃形成和非平衡材料动力学的新途径。
英文摘要：
Aging is a hallmark of disordered materials such as glasses, plastics, and pharmaceuticals, where it often limits long-term stability and performance. In practice, aging is controlled through global parameters like temperature or pressure, which act uniformly on the entire system. Here we introduce a fundamentally different approach, using light confined in optical cavities as a precise and selective tool to guide aging dynamics. We show that a supercooled liquid coupled to an optical cavity undergoes non-thermal aging, where aging is induced by light without a thermal quench. Light selectively pumps fast vibrational modes while the bath temperature remains unchanged, reshaping the slow structural dynamics of the liquid. The cavity-coupled liquid thereby behaves as if it were structurally colder than its surroundings. Exploiting this effective structural cooling together with the timescale separation, we introduce cavity configurational feedback ($\mathrm{C^2F}$) cooling, which uses cavity coupling to reach progressively lower structural temperatures. Our results establish a connection between glass physics and strong light-matter interactions and open a new route toward optical control of aging, glass formation, and nonequilibrium materials dynamics.
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