Localizing spin dynamics in a spin-1 Bose-Einstein condensate via magnetic pulses
Localizing spin dynamics in a spin-1 Bose-Einstein condensate via magnetic pulses
复制标题
通过磁脉冲定位自旋 1 玻色-爱因斯坦凝聚体中的自旋动力学
DOI：
10.1103/physreva.92.013630
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发表时间：
2015-03
影响因子：
2.9
通讯作者：
Zhang, Wenxian
中科院分区：
文献类型：
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作者：
Li, Huanbin;Pu, Zhengguo;Chapman, M. S.;Zhang, Wenxian
在平均场理论的单空间模式近似下，自旋1玻色-爱因斯坦凝聚体中原子间的自旋交换相互作用导致原子自旋周期性演化。根据两步或四步控制协议施加快速磁脉冲，我们分析地发现自旋动力学在任意初始状态下被显著抑制。通过单模态近似下的数值计算，验证了这些协议的有效性和鲁棒性。这种定位方法可以很容易地用于提高自旋为1的玻色-爱因斯坦凝聚体磁强计的灵敏度。
Spin exchange interaction between atoms in a spin-1 Bose-Einstein condensate causes atomic spin evolving periodically under the single spatial mode approximation in the mean field theory. By applying fast magnetic pulses according to a two-step or a four-step control protocol, we find analytically that the spin dynamics is significantly suppressed for an arbitrary initial state. Numerical calculations under single mode approximation are carried out to confirm the validity and robustness of these protocols. This localization method can be readily utilized to improve the sensitivity of a magnetometer based on spin-1 Bose-Einstein condensates.
DOI：
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发表时间：
--
期刊：
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影响因子：
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作者：
MD YOSHIO KINAMI;I. Miyazaki;Mdi
通讯作者：
MD YOSHIO KINAMI;I. Miyazaki;Mdi