论文标题
旋转自旋轨道耦合偶极自旋-1玻色-instein冷凝物中的拓扑缺陷
Topological defects in rotating spin-orbit-coupled dipolar spin-1 Bose-Einstein condensates
论文作者
论文摘要
我们考虑在旋转谐波加四分之一的陷阱中使用自旋轨道耦合（SOC）和偶极 - 偶极相互作用（SOC）和偶极 - 偶极相互作用（SOC）和偶极 - 偶极相互作用（SOC）的自旋-1玻色凝结物（BEC）的拓扑缺陷和自旋结构。分析了SOC，DDI和旋转对系统基础阶段的综合作用。我们的结果表明，对于固定旋转频率结构相变，可以通过调整SOC和DDI的幅度来实现。给出地面相图作为SOC和DDI强度的函数。结果表明，该系统表现出丰富的量子相，包括具有孤立密度峰（DPS），带有DPS的三角形（平方）涡旋晶格相的涡旋弦相，带有dps的三角形（平方）涡旋晶格相，棋盘板相和带有隐藏的涡流和抗生物的条纹相。对于给定的SOC和DDI强度，该系统可以显示带有DPS的五边形涡旋晶格，带DPS的涡旋项链以及由多层可见涡流项链组成的外来拓扑结构，隐藏的巨型涡旋和隐藏的涡旋项链，取决于旋转频率。 In addition, the system sustains fascinating novel spin textures and skyrmion excitations, such as an antiskyrmion pair, antiskyrmion-half-antiskyrmion (antiskyrmion-antimeron) cluster, skyrmion-antiskyrmion lattice, skyrmion-antiskyrmion cluster, skyrmion-antiskyrmion-meron-antimeron lattice, double-layer半抗肌项链和复合巨型 - antiskyrmion-antimeron项链。
We consider the topological defects and spin structures of spin-1 Bose-Einstein condensates (BECs) with spin-orbit coupling (SOC) and dipole-dipole interaction (DDI) in a rotating harmonic plus quartic trap. The combined effects of SOC, DDI and rotation on the ground-state phases of the system are analyzed. Our results show that for fixed rotation frequency structural phase transitions can be achieved by adjusting the magnitudes of the SOC and DDI. A ground-state phase diagram is given as a function of the SOC and DDI strengths. It is shown that the system exhibits rich quantum phases including vortex string phase with isolated density peaks (DPs), triangular (square) vortex lattice phase with DPs, checkerboard phase, and stripe phase with hidden vortices and antivortices. For given SOC and DDI strengths, the system can display pentagonal vortex lattice with DPs, vortex necklace with DPs, and exotic topological structure composed of multi-layer visible vortex necklaces, a hidden giant vortex and hidden vortex necklaces, depending on the rotation frequency. In addition, the system sustains fascinating novel spin textures and skyrmion excitations, such as an antiskyrmion pair, antiskyrmion-half-antiskyrmion (antiskyrmion-antimeron) cluster, skyrmion-antiskyrmion lattice, skyrmion-antiskyrmion cluster, skyrmion-antiskyrmion-meron-antimeron lattice, double-layer half-antiskyrmion necklaces, and composite giant-antiskyrmion-antimeron necklaces.
