论文标题
具有离散旋转对称性的异国涡流状态在原子费米气体中具有旋转轨道 - 角摩肌耦合状态
Exotic Vortex States with Discrete Rotational Symmetry in Atomic Fermi Gases with Spin-Orbital-Angular-Momentum Coupling
论文作者
论文摘要
我们研究了具有自旋 - 骨 - 角摩膜耦合（SOAMC）的两个组分子费米气体的超流量。由于SOAMC的复杂相互作用，两光子失调和原子 - 原子相互作用，与通常需要外部旋转或磁场的常见情况相反，相比之下，涡流基态的家族呈现在相图的广泛参数状态下。更引人注目的是，预计会自发地将连续的旋转对称性打破离散的涡流状态。通过数值模拟阐明并验证了基础物理学。预测涡流状态的独特密度分布可以在实验中进行直接观察。
We investigate the superfluidity of a two-component Fermi gas with spin-orbital-angular-momentum coupling (SOAMC). Due to the intricate interplay of SOAMC, two-photon detuning and atom-atom interaction, a family of vortex ground states emerge in a broad parameter regime of the phase diagram, in contrast to the usual case where an external rotation or magnetic field is generally required. More strikingly, an unprecedented vortex state, which breaks the continuous rotational symmetry to a discrete one spontaneously, is predicted to occur. The underlying physics are elucidated and verified by numerical simulations. The unique density distributions of the predicted vortex states enable a direct observation in experiment.
