作者: Klaus von Klitzing
DOI: 10.1007/BFB0108600
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摘要: The knowledge of an accurate value for the fine-structure constant α is necessary in order to check quantum electrodynamic theory and reduce uncertainty other fundamental constants. various established methods determination are briefly reviewed introduction given a new solid state effect (the quantized Hall resistance two-dimensional electron gas), which allows be calculated directly. After summary properties gas strong magnetic field, measurements presented. Correction terms due carrier localization, scattering processes, or finite geometry sample, analyzed.