论文标题
结构化的杂量量子液滴
Structured hetero-symmetric quantum droplets
论文作者
论文摘要
我们预测，Lee-huang-yang效应使在二元玻色 - 因斯坦冷凝物中创建稳定的量子液滴（QD），具有异质 - 对称或异质多杆菌结构，即在其成分中的不同涡度或多极性。当液滴的任何化学势μ_1,2接近（μ_1，μ_2）平面中三角形存在域的边缘时，QD具有平坦形状。只要一个组件的标准较大，其组件的不同涡度的QD对方位扰动是稳定的。我们还提出了多极状态，其中与强大基本成分的相互作用平衡了另一个组件中具有相反符号的杆之间的排斥，从而导致稳定结合状态的形成。为偶极QD获得了扩展的稳定域； Tripole是存在但不稳定的，而四倍的狭窄区域则稳定。与具有相同组成部分的州相比，结果揭示了稳定二进制QD的富裕家族的存在。
We predict that Lee-Huang-Yang effect makes it possible to create stable quantum droplets (QDs) in binary Bose-Einstein condensates with a hetero-symmetric or hetero-multipole structure, i.e., different vorticities or multipolarities in their components. The QDs feature flat-top shapes when either chemical potential μ_1,2 of the droplet approaches an edge of a triangular existence domain in the (μ_1,μ_2) plane. QDs with different vorticities of their components are stable against azimuthal perturbations, provided that the norm of one component is large. We also present multipole states, in which the interaction with a strong fundamental component balances the repulsion between poles with opposite signs in the other component, leading to the formation of stable bound states. Extended stability domains are obtained for dipole QDs; tripole ones exist but are unstable, while quadrupoles are stable in a narrow region. The results uncover the existence of much richer families of stable binary QDs in comparison to states with identical components.
