论文标题
二维涡流量子液滴变厚
Two-dimensional vortex quantum droplets get thick
论文作者
论文摘要
我们研究二维（2D）涡流量子液滴（QD），被较厚的横向限制与A> 1UM所困。在这种情况下，Lee-huang-yang（Lhy）项应在三维（3D）配置中以其原始形式描述。先前的研究表明，稳定的2D涡流QD可以通过<< 1UM的较薄的横向限制来支持。在这种情况下，LHY项由对数描述。因此，两种限制特征导致涡旋QD的不同机制。必须重新识别涡旋QD的稳定性和特征。在当前系统中，我们发现稳定的2D涡流QD可以用拓扑费用数量至少为4个。我们根据新条件重新准备了它们的密度概况，化学势和阈值标准，以支持稳定的涡旋QD。与薄限制下的QD不同，当前系统中的QD彼此强烈排斥，因为LHY术语具有更高阶的排斥力，而不是薄限制系统。此外，在整个论文中研究了两个移动涡流QD之间的弹性和非弹性碰撞。两种碰撞可以通过发挥不同的相关速度值来表征。系统可以支持该系统的稳定嵌套涡流QD，该动力学是通过将一个较小的拓扑编号嵌入一个带有较大拓扑的涡流QD构建的，该涡流数量具有较大的拓扑电荷，可以由系统支持。
We study two-dimensional (2D) vortex quantum droplets (QDs) trapped by a thicker transverse confinement with a>1um. Under this circumstance, the Lee-Huang-Yang (LHY) term should be described by its original form in the three-dimensional (3D) configuration. Previous studies have demonstrated that stable 2D vortex QDs can be supported by a thin transverse confinement with a<<1um. In this case, the LHY term is described by a logarithm. Hence, two kinds of confinement features result in different mechanisms of the vortex QDs. The stabilities and characteristics of the vortex QDs must be re-identified. In the current system, we find that stable 2D vortex QDs can be supported with topological charge number up to at least 4. We reformulated their density profile, chemical potential and threshold norm for supporting the stable vortex QDs according to the new condition. Unlike the QDs under thin confinement, the QDs in the current system strongly repel each other because the LHY term features a higher-order repulsion than that of the thin confinement system. Moreover, elastic and inelastic collisions between two moving vortex QDs are studied throughout the paper. Two kinds of collisions can be characterized by exerting different values of related speed. The dynamics of the stable nested vortex QD, which is constructed by embedding one vortex QD with a smaller topological number into another vortex QD with a larger number of topological charge, can be supported by the system.
