AI 中文总结
基于维格纳方程的单粒子模型探索纳米尺度水流中的负量子摩擦现象，通过数值模拟发现有从固体壁电子到流动水分子的净动量转移，可使水摩擦降低，为搭建经典与量子描述的理论框架提供前景。
AI 中文摘要
我们基于一个单粒子模型探索“量子”摩擦现象，该模型仿照描述固体壁中电子流动以限制纳米尺度水流的维格纳方程构建。数值模拟显示出负量子摩擦的明显特征，即从固体壁中的电子到流动水分子的净动量转移。这种净动量转移使水摩擦大幅降低，可达百分之四十，具体取决于经典与量子涨落之间的耦合强度。我们的结果为通过连续介质动力学理论和基于粒子的模拟搭建经典与量子描述之间的理论框架提供了前景。
英文摘要
We explore the phenomenon of "quantum" friction based on a single-particle model patterned after the Wigner equation describing electrons flow in a solid wall confining nanoscale water flows. The numerical simulations show a clear signature of negative quantum friction, namely a net momentum transfer from the electrons in the solid wall to the flowing water molecules. Such net momentum transfer results into a sizeable reduction of the water friction, up to forty percent, depending on the strength of the coupling between classical and quantum fluctuations. Our results offer the prospect of a theoretical framework bridging classical and quantum description by using continuum kinetic theories and particle-based simulations.
Comments8 pages, 7 figures
