论文标题
平面碱性玻色气体中的超细时钟状态之间的磁性偶极相互作用
Magnetic dipolar interaction between hyperfine clock states in a planar alkali Bose gas
论文作者
论文摘要
在原子系统中，时钟状态具有总角动量的零投影，因此对磁场的灵敏度低。这使它们广泛用于原子喷泉或重量表等计量应用。在这里，我们表明两个这样的非磁性状态的混合物仍然显示出磁偶极 - 偶极相互作用。使用$^{87} $ rb原子的平面气体的高分辨率光谱，我们探索了这些相互作用的有效各向同性和广泛特征，并证明了它们的可调性。我们的测量值对涉及两个时钟状态的S波散射长度的相对值$ a_ {ij} $设定了强大的约束。
In atomic systems, clock states feature a zero projection of the total angular momentum and thus a low sensitivity to magnetic fields. This makes them widely used for metrological applications like atomic fountains or gravimeters. Here, we show that a mixture of two such non-magnetic states still display magnetic dipole-dipole interactions. Using high resolution spectroscopy of a planar gas of $^{87}$Rb atoms with a controlled in-plane shape, we explore the effective isotropic and extensive character of these interactions and demonstrate their tunability. Our measurements set strong constraints on the relative values of the s-wave scattering lengths $a_{ij}$ involving the two clock states.
