Manipulation of heteronuclear spin dynamics with microwave and vector light shift

We report the study of heteronuclear spin-exchange dynamics starting from a spin-1 mixture of Rb\textbar 1,0\textgreater and Na\textbar 1,0\textgreater atoms. which depends on the competition between the Zeeman energy and interspecies spin-dependent interaction energy. Within a narrow magnetic field window around 1 G, we have observed a dramatic enhancement of a particular process: Rb\textbar 1,0\textgreater $+$ Na\textbar 1,0\textgreater $\Leftrightarrow $ Rb\textbar 1,1\textgreater $+$ Na\textbar 1,-1\textgreater . We also demonstrated the ability to precisely manipulate this process via a far-detuned microwave or laser field. The microwave method, similar to that in single-species spinor gases, tunes the species-selective quadratic Zeeman energy. As a comparison, the light field shifts the species-dependent linear Zeeman energy. Both methods are shown to be powerful and flexible in our system. Our investigations have revealed the richness of quantum manipulations in heteronuclear spinor systems.