Is the electron stationary in the ground state of the Dirac hydrogen   atom in Bohm's Theory?
  We show that, in the relativistic Bohm model of a Dirac-like particle, the electron in the ground state of the hydrogen atom is moving, unlike the prediction for the case of a Schr\"{o}dinger-like particle, where the electron is stationary. This accounts for the empirically observed dilation of the decay time of the muon in the ground state of muonium. 
B. J. Hiley
quant-ph