基本常数随时间变化的实验结果
Experimental Consequences of Time Variations of the Fundamental Constants
摘要：
我们讨论的基本常数的假设时间变化的实验后果。我们强调，从纯唯象的观点来看，只有无量纲的基本常数才有意义。两类实验确定的结果，基本上是独立的所有常数的值。最后，我们表明，实验一般解释的维度的重力常数$G$的时间变化的更好地解释为给无量纲常数$α_G=Gm_p^2/\hbar c$的变化的限制。
英文摘要：
We discuss the experimental consequences of hypothetical time variations of the fundamental constants. We emphasize that from a purely phenomenological point of view, only dimensionless fundamental constants have significance. Two classes of experiments are identified that give results that are essentially independent of the values of all constants. Finally, we show that experiments that are generally interpreted in terms of time variations of the dimensioned gravitional constant $G$ are better interpreted as giving limits on the variation of the dimensionless constant $α_G=Gm_p^2/\hbar c$.
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