论文标题
狂犬耦合旋转依赖性费米 - 哈伯德模型中的谐振超流量
Resonant superfluidity in the Rabi-coupled spin-dependent Fermi-Hubbard model
论文作者
论文摘要
我们使用密度矩阵重新归一化组方法研究了具有自旋依赖性跳的一维有吸引力的费米 - 哈伯德模型的地面相图和现场RABI耦合。特别是，我们表明，即使在一个组件的极限中，当狂犬病耦合处于系统开始强烈极化之前，对狂犬病耦合处于相互作用强度的顺序时，对次数也可以增强。我们得出有效的Spin-1/2 XXZ模型，以了解强吸引力极限中的地面特性。
We investigate the ground-state phase diagram of the one-dimensional attractive Fermi-Hubbard model with spin-dependent hoppings and an on-site Rabi coupling using the density matrix renormalization group method. In particular, we show that even in the limit of one component being immobile the pair superfluidity can be resonantly enhanced when the Rabi coupling is on the order of the interaction strength just before the system starts to strongly polarize. We derive an effective spin-1/2 XXZ model in order to understand the ground-state properties in the strong attraction limit.
