| Autor: |
Jingxu Bai, Suying Bai, Xiaoxuan Han, Yuechun Jiao, Jianming Zhao, Suotang Jia |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
New Journal of Physics, Vol 22, Iss 9, p 093032 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1367-2630 |
| DOI: |
10.1088/1367-2630/abaf30 |
| Popis: |
We present precise measurements of polarizabilities of cesium n S _1/2 ( n = 65–75) Rydberg states by Stark spectroscopies. In experiment, Rydberg atoms are excited via a two-photon scheme of a standard magneto-optical trap and detected by the field ionization technique. The Stark shift is measured by analysing the spectroscopy under an external electric field. The polarizability, α , is acquired by fitting the experimental data of Stark shifts with ${\Delta}W=-\frac{1}{2}\alpha {E}^{2}$ . The theoretical model is applied to numerically simulate the Stark map and corresponding level shifts, related deviation between the experimental measurements and calculations are less than 2%. The scaling law of polarizabilities, $A\cdot {\left({n}^{{\ast}}\right)}^{7}+B\cdot {\left({n}^{{\ast}}\right)}^{6}$ ( n * is effective principal quantum number), is attained, that shows a good agreement with the measurements. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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