论文标题
原子级量子导体中的热力学不确定性关系
Thermodynamic uncertainty relation in atomic-scale quantum conductors
论文作者
论文摘要
当电子传输过程是量子相干且传输概率是恒定的时（能量和电压独立的）时，预计热力学不确定性关系（TUR）将在纳米级电子导体中保存。我们介绍了电子电流及其在金原子尺度连接中的噪声，并确认了TUR在逼真的量子相干导体中对电子传输的有效性。此外，我们表明将电流及其噪声作为TUR比率是有益的，以确定与非互动电子相干动力学的偏差。
The thermodynamic uncertainty relation (TUR) is expected to hold in nanoscale electronic conductors, when the electron transport process is quantum coherent and the transmission probability is constant (energy and voltage independent). We present measurements of the electron current and its noise in gold atomic-scale junctions and confirm the validity of the TUR for electron transport in realistic quantum coherent conductors. Furthermore, we show that it is beneficial to present the current and its noise as a TUR ratio in order to identify deviations from noninteracting-electron coherent dynamics.
