New determination of the fine structure constant and test of the quantum electrodynamics

Abstract

We report a new measurement of the ratio $h/m_{\mathrm{Rb}}$ between the Planck constant and the mass of ${}^{87}\mathrm{Rb}$ atom. A new value of the fine structure constant is deduced, ${\alpha }^{-1}=137.035999037(91)$ with a relative uncertainty of $6.6\times 10^{-10}$. Using this determination, we obtain a theoretical value of the electron anomaly $a_{\mathrm{e}}=0.00115965218113(84)$ which is in agreement with the experimental measurement of Gabrielse ($a_{\mathrm{e}}=0.00115965218073(28)$). The comparison of these values provides the most stringent test of the QED. Moreover, the precision is large enough to verify for the first time the muonic and hadronic contributions to this anomaly.

References in corpus (4)

• Combination of Bloch oscillations with a Ramsey-Bordé interferometer : new determination of the fine structure constant
• Revised value of the eighth-order electron g-2
• Noise-Immune Conjugate Large-Area Atom Interferometers
• A new test of the light dark matter hypothesis

Cited by in corpus (6)

• Constraints on Hidden Photon Models from Electron g-2 and Hydrogen Spectroscopy
• Information recycling beam-splitters for atom-interferometry with enhanced sensitivity
• Quantum electrodynamic calculation of the hyperfine structure of 3He
• Tests of CPT and Lorentz symmetry from muon anomalous magnetic dipole moment
• Measuring the atomic recoil frequency using a perturbative grating-echo atom interferometer
• Noncommutative magnetic moment, fundamental length and lepton size