Measurement of the hyperfine coupling constant for nS1/2 Rydberg states of Rb85
Measurement of the hyperfine coupling constant for nS1/2 Rydberg states of Rb85
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DOI：
10.1103/physreva.100.062515
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发表时间：
2019-09
影响因子：
2.9
通讯作者：
A. Ramos;R. Cardman;G. Raithel
中科院分区：
文献类型：
--
作者：
A. Ramos;R. Cardman;G. Raithel
在n=43，44，45和46的情况下，我们测量了$Ns1/2}$Rydberg态的超精细结构分裂。由分裂得到的超精细耦合常数为15.372(80)GHz。这一结果比之前的测量结果提高了一个数量级。我们研究并解释了系统的不确定源，例如不需要的电场和磁场、偶极里德堡-里德堡相互作用和交流漂移。发现了超精细混合里德堡对状态的初步证据。
We present measurements of the hyperfine structure splittings of $nS_{1/2}$ Rydberg states of $^{85}$Rb for $n$= 43, 44, 45 and 46. From the splittings, the hyperfine coupling constant, $A_{\mathrm{HFS}}$, is determined to be 15.372(80) GHz. This result is an order-of-magnitude improvement from previous measurements. We study and account for systematic uncertainty sources, such as unwanted electric and magnetic fields, dipolar Rydberg-Rydberg interactions, and AC shifts. Initial evidence for hyperfine-mixed Rydberg pair states is found.