Excitation of the Th229 nucleus via a two-photon electronic transition

  title={Excitation of the 
 nucleus via a two-photon electronic transition},
  author={Robert Alexander Muller and Andrey V. Volotka and Andrey Surzhykov},
  journal={Physical Review A},
We investigate the process of nuclear excitation via a two-photon electron transition (NETP) for the case of the doubly charged thorium. The theory of the NETP process has been devised originally for heavy helium like ions. In this work we study this process in the nuclear clock isotope $^{229}$Th in the $2+$ charge state. For this purpose we employ a combination of configuration interaction and many-body perturbation theory to calculate the probability of NETP in resonance approximation. The… Expand
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