标题： 单分子量子热机 显示英文标题

标题： A Single-Molecule Quantum Heat Engine

摘要： 粒子交换热机无需运动部件或时间依赖驱动，仅依靠静态能量选择性传输运行。 在这里，我们实现了一种基于单个双自由基分子的粒子交换量子热机，其尺寸仅为几个纳米。 我们实验研究了其在低温下的运行情况，并证明通过库恩多相关效应，输出功率和效率显著提高，达到卡佐-阿赫尔本极限的53%。 这些结果确立了分子尺度的粒子交换发动机作为低温应用中的有前途的候选者，其中极端微型化和能源效率至关重要。 显示英文摘要

摘要： Particle-exchange heat engines operate without moving parts or time-dependent driving, relying solely on static energy-selective transport. Here, we realize a particle-exchange quantum heat engine based on a single diradical molecule, only a few nanometers in size. We experimentally investigate its operation at low temperatures and demonstrate that both the power output and efficiency are significantly enhanced by Kondo correlations, reaching up to 53 % of the Curzon-Ahlborn limit. These results establish molecular-scale particle-exchange engines as promising candidates for low-temperature applications where extreme miniaturization and energy efficiency are paramount.