Generalized excitation of atomic multipole transitions by twisted light modes

@article{Schulz2020GeneralizedEO,
  title={Generalized excitation of atomic multipole transitions by twisted light modes},
  author={S. A.-L. Schulz and Anton Peshkov and R. A. M{\"u}ller and R. Lange and N. Huntemann and Chr. Tamm and Ekkehard Peik and Andrey Surzhykov},
  journal={Physical Review A},
  year={2020}
}
A theoretical study is performed for the excitation of a single atom localized in the center of twisted light modes. Here we present the explicit dependence of excitation rates on critical parameters, such as the polarization of light, its orbital angular momentum projection, and the orientation of its propagation axis with respect to the atomic quantization axis. The effect of a spatial spread of the atom is also considered in detail. The expressions for transition rates obtained in this work… 

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