A Preliminary Measurement of the Fine Structure Constant Based on Atom Interferometry

By A. Wicht, J. Hensley, E. Sarajlic, S. Chu. 2003

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Measurement of the fine-structure constant as a test of the Standard Model (2018, methodology): “ty to test the Standard Model. The most accurate of previous such measurements have been based on the kineticenergy ℏ 2k =ð2m AtÞofanatomofmass m At that recoils from scattering a photon of momentumℏk(3),whereℏisPlanck’sconstanthdivided by 2p,andk =2p/l is the laser wave number (wherelisthelaserwave”
Quantum-Spacetime Phenomenology (2008, background): “(85) with atoms is applicable to measurements of the “recoil frequency” of atoms with experimental setups involving one or more “two-photon Raman transitions” [548].”
Search for New Physics with Atoms and Molecules (2017, methodology): “Alternatively, the value of α can be obtained from (Wicht et al., 2002)”
Tests of Lorentz invariance: a 2013 update (2013, methodology): “The basic techniques consists in using the available measurements of the “recoil frequency” of atoms with experimental setups involving one or more “two-photon Raman transitions” [140, 141, 142].”
Highly charged ions: Optical clocks and applications in fundamental physics (2018, methodology): “The second approach is based on the measured Rydberg constant R∞ (Bouchendira et al., 2011; Cadoret et al., 2008; Wicht et al., 2002) obtained by atom interferometry of recoiling atoms upon photon absorption.”