利用微波和矢量光频移操纵异质结自旋动力学
Manipulation of heteronuclear spin dynamics with microwave and vector light shift
摘要：
本文报道了超冷$^{87}$ Rb和$^{23}$ Na原子自旋为1的混合物中异质自旋动力学的观测和操纵。的动力学是由物种间的自旋相关的相互作用，并显示出显着的依赖于磁场与线性和二次塞曼位移的影响。类似于研究充分的homomands的情况下，物种间的自旋动力学可以通过调节二次塞曼位移与远失谐微波场控制。此外，我们成功地实现了自旋动力学控制的矢量光位移作为一个物种选择性的有效磁场对$^{87}$ Rb原子。这两种方法都显示出可以忽略不计的原子损失，因此将是研究自旋动力学的强大技术，具有快速的时间和高的空间分辨率。
英文摘要：
We report the observation and manipulation of heteronuclear spin dynamics in a spin-1 mixture of ultracold $^{87}$Rb and $^{23}$Na atoms. The dynamics is driven by the interspecies spin-dependent interaction and shows a pronounced dependence on magnetic fields with influences from both linear and quadratic Zeeman shifts. Similar to the well-studied homonuclear cases, the interspecies spin dynamics can be controlled by tuning the quadratic Zeeman shift with far-detuned microwave fields. In addition, we successfully realize spin dynamics control with vector light shifts which act as a species-selective effective magnetic field on $^{87}$Rb atoms. Both methods show negligible loss of atoms thus will be powerful techniques for investigating spin dynamics with fast temporal and high spatial resolutions.
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