Abstract
In this review we discuss the progress of the past decade in testing for a possible temporal variation of the fine structure constant α. Advances in atomic sample preparation, laser spectroscopy and optical frequency measurements led to rapid reduction of measurement uncertainties. Eventually laboratory tests became the most sensitive tool to detect a possible variation of α at the present epoch. We explain the methods and technologies that helped to make this possible.
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Kolachevsky, N., Matveev, A., Alnis, J. et al. Testing the Stability of the Fine Structure Constant in the Laboratory. Space Sci Rev 148, 267–288 (2009). https://doi.org/10.1007/s11214-009-9564-z
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DOI: https://doi.org/10.1007/s11214-009-9564-z