基本常数的可变性
Variability of fundamental constants
摘要：
如果精细结构常数不是真正的常数，这是由于$e$、$\hbar$或$c$的变化吗？有人认为，唯一合理的结论是光速可变。
英文摘要：
If the fine structure constant is not really constant, is this due to a variation of $e$, $\hbar$, or $c$? It is argued that the only reasonable conclusion is a variable speed of light.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
