Some possibilities for laboratory searches for variations of fundamental constants

Details Some possibilities for laboratory searches for variations of fundamental constants Some possibilities for laboratory searches for variations of fundamental constants

2000-08-13

arxiv.org/abs/physics/0008051v1

Can.J.Phys. 78 (2000) 639-678

Physics

Atomic Physics

37 pages, 7 figures

Scientific paper

10.1139/cjp-78-7-639

We consider different options for the search for possible variations of the fundamental constants. We give a brief overview of the results obtained with several methods. We discuss their advantages and disadvantages with respect to simultaneous variations of all constants in both time and space in the range 10^{8}-10^{10} yr. We also suggest a few possibilities for the laboratory search. Particularly, we propose some experiments with the hyperfine structure of hydrogen, deuterium and ytterbium-171 and of some atoms with a small magnetic moment. Other suggestions are for some measurements of the fine structure associated with the ground state. Special attention is paid to the interpretation of the hfs measurements in terms of variations of the fundamental constants.

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