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Hyperfine Structure of $nP_{1/2}$ Rydberg States in $^{85}$Rb

Atomic Physics 2022-12-14 v1 Quantum Physics

Abstract

We measure the hyperfine structure of nP1/2nP_{1/2} Rydberg states using mm-wave spectroscopy on an ensemble of laser-cooled 85^{85}Rb atoms. Systematic uncertainties in our measurement from the Zeeman splittings induced by stray magnetic fields and dipole-dipole interactions between two Rydberg atoms are factored in with the obtained statistical uncertainty. Our final measurement of the nP1/2nP_{1/2} hyperfine coupling constant is Ahfs=1.443(31)A_{\text{hfs}}=1.443(31)~GHz. This measurement is useful for studies of long-range Rydberg molecules, Rydberg electrometry, and quantum simulation with dipole-dipole interactions involving nP1/2nP_{1/2} atoms.

Keywords

Cite

@article{arxiv.2207.08582,
  title  = {Hyperfine Structure of $nP_{1/2}$ Rydberg States in $^{85}$Rb},
  author = {Ryan Cardman and Georg Raithel},
  journal= {arXiv preprint arXiv:2207.08582},
  year   = {2022}
}