We discuss the experimental consequences of hypothetical time variations of the fundamental constants. We show that any observed time variations can be interpreted as being due to changes in the dimensionless fundamental constants, once the effects of the constants on the structure of the experiment are taken into account. Young’s experiment for a slow charged particle and a version of the twin paradox are discussed to show how their results are independent of physical constants. We also show that experiments that are generally interpreted in terms of time variations of the gravitational constant are better interpreted as giving limits on the variation of the dimensionless constant where is the mass of the proton.
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PAPERS| October 01 2003
Experimental consequences of time variations of the fundamental constants
J. Rich; Experimental consequences of time variations of the fundamental constants. Am. J. Phys. 1 October 2003; 71 (10): 1043–1047. https://doi.org/10.1119/1.1566783
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