Ultrahigh-Precision Measurement of the n=2 Triplet P Fine Structure of Atomic Helium Using Frequency-Offset Separated Oscillatory Fields.
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DOI: 10.1103/physrevlett.121.143002
Abstract: For decades, improved theory and experiment of the n=2 ^{3}P fine structure of helium have allowed for increasingly precise tests of quantum electrodynamics, determinations of the fine-structure constant α, and limitations on possible beyond-the-standard-model physics.… read more here.
Keywords: offset separated; structure; separated oscillatory; frequency offset ... See more keywords