论文标题
紧紧的环陷阱中超流体费米 - 果混合物的旋转特性
Rotational properties of superfluid Fermi-Bose mixtures in a tight toroidal trap
论文作者
论文摘要
我们考虑了bose-Einstein冷凝物的混合物，该冷凝物与配对的费米超流体限制在环电位中。我们从这两个云的基态开始，确定其相位分离和相共存之间的边界。然后，我们转向系统的旋转响应。在分离阶段的制度中，我们有质量激发的中心。当两个物种共存时，光谱具有丰富的结构，由连续和不连续的相变。此外，除了由于周期性的边界条件而导致的情况下，它还发展出明显的准周期性行为。这样，一个组件驻留在平面波状态，具有均匀密度分布，并且该问题类似于单组分系统的组件。
We consider a mixture of a Bose-Einstein condensate, with a paired Fermi superfluid, confined in a ring potential. We start with the ground state of the two clouds, identifying the boundary between the regimes of their phase separation and phase coexistence. We then turn to the rotational response of the system. In the phase-separated regime, we have center of mass excitation. When the two species coexist, the spectrum has a rich structure, consisting of continuous and discontinuous phase transitions. Furthermore, for a reasonably large population imbalance it develops a clear quasi-periodic behaviour, in addition to the one due to the periodic boundary conditions. It is then favourable for the one component to reside in a plane-wave state, with a homogeneous density distribution, and the problem resembles that of a single-component system.
