Experimental Consequences of Time Variations of the Fundamental Constants

Details Experimental Consequences of Time Variations of the Fundamental Constants Experimental Consequences of Time Variations of the Fundamental Constants

2002-09-04

arxiv.org/abs/physics/0209016v1

Am.J.Phys. 71 (2003) 1043-1047

Physics

Classical Physics

9 pages, 1 figure

Scientific paper

10.1119/1.1566783

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 $\alpha_G=Gm_p^2/\hbar c$.

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