Realization of space-dependent interactions by an optically controlled magnetic p-wave Feshbach resonance in degenerate Fermi gases

We report experimental realization of the space-dependent interaction by optical controlled narrow p-wave magnetic Feshbach resonance in a K-40 Fermi gas. A space varied optical field at the tune-out wavelength is applied to illuminate the atomic sample, which drives the bound-to-bound molecular transition to shift the energy of a closed-channel molecule state. Due to the position varied atomic interaction induced by the different laser intensity distribution across the entire Fermi atom cloud, the space-dependent atomic loss rate is observed. This scheme provides a control technique to study the Fermi gas with the space-dependent atomic p-wave interaction, and has great potential in quantum simulation.