h脉泽磁态选择区的马约拉纳原子跃迁研究

A. Mikhail
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引用次数: 3

摘要

当使用马约拉纳方法时,为了使单态选择系统有效地工作,知道原子自旋的最终旋转角度如何依赖于选择磁体之间区域的总磁场是非常重要的。正如在以前的工作中所显示的那样,旋量F = 1的旋转角度在很大程度上取决于总场为零的点的横向位移(关于氢束轴z)。在这项工作中,首次通过实验获得了单态选择系统性能(或h脉泽输出功率)与放置在磁体之间区域的横向线圈电流的依赖关系。在依赖关系上,明确确定了相应电流量下旋量为0、π/2、π的旋量转角,即零场的横向坐标。定义了单态选择效率(旋转角等于π)达到最大值时的最优电流值。此外,通过对h脉泽功率曲线的探索和双共振方法证实了单态选择系统的运行。决定单态选择系统效率的光束中工作原子的相对数量约为70%。
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Majorana atomic transition research in H-maser's magnetic state selection region
For efficient performance of a single-state selection system when using Majorana method, it's extremely important to know how eventual angle of rotation for atom's spin depends on a total magnetic field in a region between selection magnets. As it was shown in previous work, the angle of rotation for spinor F = 1 greatly depends on a transverse (in regard to the hydrogen beam axis z) displacement of the point where total field is zero. In this work, for the first time, the dependence of single-state selection system performance (or H-maser's output power) on the currents of the transverse coils, that are placed at the region between magnets, is experimentally obtained. On the dependence, the angles of rotation for spinor that are equal to 0, π/2, π under corresponding quantity of the currents, i. e. transverse coordinates of the zero field, are explicitly determined. The optimal values of the currents, when the maximum of the single-state selection efficiency (the angle of rotation is equal π) is achieved, are defined. Moreover, the operation of the single-state selection system is confirmed by exploration of the H-maser's power curve and also by double resonance method. The relative amount of the operating atoms in the beam, that defines single-state selection system efficiency, is approximately 70%.
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