Search for Possible Variation of the Fine Structure Constant

Abstract

Determination of the fine structure constant alpha and search for its possible variation are considered. We focus on a role of the fine structure constant in modern physics and discuss precision tests of quantum electrodynamics. Different methods of a search for possible variations of fundamental constants are compared and those related to optical measurements are considered in detail.

An invited talk at HYPER symposium (Paris, 2002)

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Cited by in corpus (6)

• Varying constants, Gravitation and Cosmology
• Cosmological Evolution of Fundamental Constants: From Theory to Experiment
• Possible variations of the fine structure constant $\alpha$ and their metrological significance
• Thomson scattering: One rate to rule them all
• Recent developments in premetric classical electrodynamics
• Estimations of the cosmological parameters from the observational variation of the fine structure constant