论文标题
搜索使用偏振氦的异国旋转依赖性相互作用
Search for exotic spin-dependent interactions using polarized helium
论文作者
论文摘要
我们使用频率方法和共振方法研究了对$^3 $ He的极化核自旋与非极化或极化固态质量颗粒之间的异国情调自旋相互作用的搜索敏感性。在频率方法中，依赖自旋的相互作用充当有效的静态磁场，从而导致频率转移到$^{3} $ He的自旋进动。用Arvanitaki和Geraci提出的共振方法[Phys。莱特牧师。 113，161801（2014）]为了显着改善实验敏感性对自旋依赖性相互作用的显着改善，质量运动以$^3 $ HE的Larmor频率进行调制。这会导致调节自旋依赖性相互作用，从而诱导有效的振荡磁场，该磁场可以倾斜$^3 $ HE，同样是核磁共振中的振荡磁场。我们使用房间温度$^3 $估算搜索的敏感性，他在其极长的放松时间内的目标。可以在$ 10^{ - 1} $ m的相互作用长度范围内设置旋转相互作用的耦合强度的新限制。
We investigate the sensitivities of searches for exotic spin-dependent interactions between the polarized nuclear spins of $^3$He and the particles of unpolarized or polarized solid-state masses using the frequency method and the resonance method. In the frequency method, the spin-dependent interactions act as an effective static magnetic field, causing the frequency shift to the spin precession of $^{3}$He. In the resonance method, proposed by Arvanitaki and Geraci [Phys. Rev. Lett. 113, 161801 (2014)] for the significant improvement of the experimental sensitivities on the spin-dependent interactions, the mass movement is modulated at the Larmor frequency of $^3$He. This results in the modulating spin-dependent interactions inducing an effective oscillatory magnetic field, which can tilt the $^3$He spins, similarly as an oscillatory magnetic field in nuclear magnetic resonance. We estimate the sensitivities of the searches using a room-temperature $^3$He target for its extremely long relaxation time. New limits on the coupling strengths of the spin-dependent interactions can be set in the interaction length range below $10^{-1}$ m.
