论文标题
通过热光子在多体系统中的正常热扩散
Normal heat diffusion in many-body system via thermal photons
论文作者
论文摘要
通过热光子载体在多体系统中进行传热的正常扩散理论。导热量张量首次从波动电动力学中严格衍生为扩散项的系数。此外,在颗粒的不对称分布系统中揭示了对流样的传热行为,这表明违反了此类系统的傅立叶定律。考虑到热导率在传热中的核心作用,这项工作铺平了一种通过具有多体相互作用的热光子来理解,分析和操纵纳米颗粒系统中传热的方法。
A normal-diffusion theory for heat transfer in many-body systems via carriers of thermal photons is developed. The thermal conductivity tensor is rigorously derived from fluctuational electrodynamics as a coefficient of diffusion term for the first time. In addition, a convection-like heat transfer behavior is revealed in systems of asymmetric distribution of particles, indicating violation of Fourier's law for such system. Considering the central role of thermal conductivity in heat transfer, this work paves a way for understanding, analysis and manipulation of heat transfer in nanoparticle system via thermal photons with many-body interactions.