Determination of quantum defect for the Rydberg P series of Ca II
| Autor: | Mokhberi, Arezoo, Vogel, Jonas, Andrijauskas, Justas, Bachor, Patrick, Walz, Jochen, Schmidt-Kaler, Ferdinand |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | J. Phys. B: At. Mol. Opt. Phys. 52 (2019) 214001 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1361-6455/ab402b |
| Popis: | We present an experimental investigation of the Rydberg 23 P$_{1/2}$ state of laser-cooled $^{40}$Ca$^+$ ions in a radiofrequency ion trap. Using micromotion sideband spectroscopy on a narrow quadrupole transition, the oscillating electric field at the ion position was precisely characterised, and the modulation of the Rydberg transition due to this field was minimised. From a correlated fit to this P line and previously measured P and F level energies of Ca II, we have determined the ionization energy of 95 751.916(32) $\rm {cm}^{-1}$, in agreement with the accepted value, and the quantum defect for the $n$ P$_{1/2}$ states. Comment: 7 pages, 3 figures |
| Databáze: | arXiv |
| Externí odkaz: |
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