论文标题
同位素对卡西米尔力的影响
Isotope effect on the Casimir force
论文作者
论文摘要
Casimir力的同位素依赖性是探测新物理学并在微观和纳米级上推动新技术的关键，但在很大程度上没有探索。 2002年，估计金属的同位素效应为10^（-4） - 超出实验分辨率的数量级。在这里，通过采用Lifshitz理论，我们揭示了极性介电的显着同位素效应。这种效果来自区域中心光学声子的同位素质量诱导的线移，对线宽不敏感。我们对假想轴和实际频率轴进行数值分析，并得出用于预测同位素效应的分析公式。
Isotopic dependence of the Casimir force is key to probing new physics and pushing novel technologies at the micro and nanoscale, but is largely unexplored. In 2002, an isotope effect of 10^(-4) was estimated for metals -- orders of magnitude beyond the experimental resolution. Here, by employing the Lifshitz theory, we reveal a significant isotope effect of over 10^(-1) for polar dielectrics. This effect arises from the isotope-mass-induced line shift of the zone-center optical phonons and is insensitive to the linewidth. We perform numerical analyses on both the imaginary and real-frequency axes, and derive analytical formulas for predicting the isotope effect.
