EDM measurement in 129Xe atom using dual active feedback nuclear spin maser
EDM measurement in 129Xe atom using dual active feedback nuclear spin maser
复制标题
使用双主动反馈核自旋微波激射器对 129Xe 原子进行 EDM 测量
DOI：
10.1007/s10751-014-1113-9
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发表时间：
2015
影响因子：
--
通讯作者：
K. Asahi
中科院分区：
文献类型：
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作者：
T. Sato;Y. Ichikawa;Y. Ohtomo;Y. Sakamoto;S. Kojima;C. Funayama;T. Suzuki;M. Chikamori;E. Hikota;M. Tsuchiya;T. Furukawa;A. Yoshimi;C. P. Bidinosti;T. Ino;H. Ueno;Y. Matsuo;T. Fukuyama;K. Asahi
本文采用主动核自旋脉塞技术研究了反磁原子的电偶极矩。为了减小由外磁场的长期漂移和纵向极化Rb原子与129 π自旋的接触相互作用引起的系统不确定性，采用了一种双池结构的~ 3 He余磁计。通过稳定电池温度来减轻剩余的偏移，其被证明与电池温度具有一定的相关性。实验结果表明，129 μ m脉泽的频率漂移由12 mHz减小到700μHz，在2× 104 s的测量时间内获得了8.7 nHz的频率测量精度。
The technique of an active nuclear spin maser is adopted in the search for electric dipole moment in a diamagnetic atom129Xe. In order to reduce systematic uncertainties arising from long-term drifts of the external magnetic field and from the contact interaction between longitudinal polarized Rb atoms and129Xe spin, a3He comagnetometer with a double-cell geometry was employed. The remaining shift, which turned out to show some correlation with the cell temperature, was mitigated by stabilizing the cell temperature. As a result, the frequency drift of the129Xe maser was reduced from 12 mHz to 700μHz, and the determination precision of frequency of 8.7 nHz was obtained for a 2×104s measurement time using the double-cell geometry cell.