A French Team Has Improved the Measurement of a Fundamental Physical Constant (IMAGE)

CNRS

A French Team Has Improved the Measurement of a Fundamental Physical Constant

Caption

Illustration of the experimental measurement of the fine-structure constant. The background patterns in the image represent the actual Feynman diagrams used to help calculate the theoretical value of the electron magnetic moment anomaly (calculated using the fine-structure constant, among others). The scheme of the atom interferometer used for measuring the recoil velocity is represented in colour.

Credit

Pierre Cladé, Saïda Guellati-Khélifa et Tatsumi Aoyama

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