Title: Asymmetry-induced radiative heat transfer in Floquet systems Show Chinese title

Title: 非对称性诱导的弗洛凯系统中的辐射传热

Abstract: Time modulation opens new avenues for light, heat control, and energy harvesting, yet the impact of nonequilibrium dynamics of microscopic particles remains largely unexplored. We develop a microscopic theory to describe radiative heat transfer in such Floquet systems. Significant heat transfer occurs due to differences in electronic properties between parallel metal plates, despite identical driving protocols and temperatures. This arises from a unique exponential-staircase distribution of radiative photons, induced by nonequilibrium electronic fluctuations, and can be tuned via both microscopic properties and driving parameters. Our work highlights the importance of nonequilibrium microscopic details, unlocking new opportunities for active cooling, thermophotovoltaics, thermal imaging and manipulation, and carrier dynamics probing. Show Chinese abstract

Abstract: 时间调制为光、热控制和能量收集开辟了新途径，然而微观粒子的非平衡动力学的影响仍大多未被探索。 我们开发了一种微观理论来描述此类弗洛凯系统中的辐射传热。 由于平行金属板之间电子性质的差异，即使驱动协议和温度相同，也会发生显著的热量传递。 这是由非平衡电子涨落引起的辐射光子的独特指数阶梯分布造成的，并可以通过微观性质和驱动参数进行调节。 我们的工作突显了非平衡微观细节的重要性，为有源冷却、热光伏、热成像和操控以及载流子动力学探测开启了新的机会。