Using the density-matrix renormalization group method, we investigate the ground-state phase diagram of a one-dimensional attractive Fermi-Hubbard model with spin-dependent hopping and on-site Rabi coupling. In particular, we show that pairwise superfluidity is resonantly enhanced even in the limit of immobility of one component when the Rabi bonds are on the order of the interaction strength just before the system begins to polarize strongly. To understand the ground state properties in the strong attraction limit, we derive an effective spin 1/2 XXZ model.

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