论文标题
千克：惯性或重力质量？
The kilogram: inertial or gravitational mass?
论文作者
论文摘要
随着国际单位系统的重新定义，普朗克常数的值固定了，类似于$^{133} $ cs原子的不受干扰的基态超细过渡频率，真空中的光速。从理论上讲与过去不同的是，千克现在被明确定义为惯性质量的单位。在实验上，千克通过原子计数或粗磨平衡来实现。我们表明，只有前一种方法可以测量惯性质量，而无需假设自由跌倒的普遍性。因此，两种措施之间的一致性可以解释为对等效原理的测试。
With the redefinition of the international system of units, the value of the Planck constant was fixed, similarly to the values of the unperturbed ground state hyperfine transition frequency of the $^{133}$Cs atom, speed of light in vacuum. Theoretically and differently from the past, the kilogram is now explicitly defined as the unit of inertial mass. Experimentally, the kilogram is realized by atom count or the Kibble balance. We show that only the former method measures the inertial mass without assuming the universality of free fall. Therefore, the agreement between the two measures can be interpreted as a test of the equivalence principle.
