基本常数恒常性之谜
Puzzle of the constancy of fundamental constants
摘要：
我们讨论的实验和观察，旨在测试可能的时空变化的基本物理常数，预测的现代理论。具体来说，我们考虑两个无量纲的物理参数，这是重要的原子和分子物理：精细结构常数和电子质子质量比。我们回顾了这些实验的现状，并批判性地分析了最近的索赔检测的宇宙学时间尺度上的精细结构常数的变化。我们强调，这一发现仍有待于通过今后的实验和观察加以检验。最严格的上限是，在10千兆的尺度上，所考虑的常数的变化不能超过0.015%。
英文摘要：
We discuss experiments and observations aimed at testing the possible space-time variability of fundamental physical constants, predicted by the modern theory. Specifically, we consider two of the dimensionless physical parameters which are important for atomic and molecular physics: the fine-structure constant and the electron-to-proton mass ratio. We review the current status of such experiments and critically analyze recent claims of a detection of the variability of the fine-structure constant on the cosmological time scale. We stress that such a detection remains to be checked by future experiments and observations. The tightest of the firmly established upper limits read that the considered constants could not vary by more than 0.015% on the scale of 10 Gigayears.
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