AI 中文总结
研究强光-物质耦合多体系统中涨落诱导双稳性，通过识别微观机制统一多种模型。开发互补方法，如 dressed-state 速率方程，结合数值模拟，确立其为普遍特征并提供非平衡动力学研究框架。
AI 中文摘要
我们证明涨落诱导双稳性是强光-物质耦合的强相互作用多体系统中的一种稳健且普遍的现象。我们识别出一种基于光子跃迁与多体能量尺度之间共振的常见微观机制，统一了包括与腔模耦合的相互作用自旋、费米子和玻色子在内的广泛模型中涨落诱导双稳性的出现。我们开发了互补方法来研究涨落诱导双稳性的稳态性质及其在有限时间的动态形成。通过将其预测与数值精确的张量网络模拟进行比较，我们在有限时间尺度上的小系统中识别出涨落诱导双稳性的特征。我们的结果确立了涨落诱导双稳性作为耗散腔耦合多体系统的普遍特征，并为研究其在广泛混合量子平台上的非平衡动力学提供了一个通用框架。
英文摘要
We demonstrate that fluctuation-induced bistability is a robust and generic phenomenon in strongly interacting many-body systems with strong light-matter coupling. We identify a common microscopic mechanism based on resonances between photonic transitions and many-body energy scales, unifying the emergence of fluctuation-induced bistability across a broad class of models, including interacting spins, fermions, and bosons coupled to cavity modes. We develop complementary methods to study both the steady-state properties of fluctuation-induced bistability and its dynamical formation at finite times. In particular, we introduce the dressed-state rate equation approach, which reveals rich metastable dynamics and enables the investigation of its system-size dependence. By comparing its predictions with numerically-exact tensor-network simulations, we identify signatures of fluctuation-induced bistability already in small systems on finite timescales. Our results establish fluctuation-induced bistability as a universal feature of dissipative cavity-coupled many-body systems and provide a general framework for the investigation of its non-equilibrium dynamics across a wide range of hybrid quantum platforms.
