论文标题
Kelvin波浪中可混杂的两种组分玻色丝凝结物中的波浪
Kelvin wave in miscible two-component Bose-Einstein condensates
论文作者
论文摘要
我们研究了基于Bogoloubov-De Genne方程的分析，研究沿单量子和半量子涡流沿单个和半量子涡流传播的开尔文波的分散体。借助插值公式，在低波和高波动仪方面连接分散关系，我们揭示了开尔文波的分散性关系对涡流组成部分的涡旋核心大小的变化而对组件相互作用的非平地依赖性。当两个组件都重叠单量化涡旋时，我们还发现开尔文模式分散分散到无间隙和间隙分支中。
We study the dispersion of Kelvin waves propagating along single- and half-quantum vortices in miscible two-component Bose-Einstein condensates based on the analysis of the Bogoloubov-de Genne equation. With the help of the interpolating formula connecting the dispersion relations at low- and high-wavenumber regime, we reveal the nontrivial dependence of the dispersion relation of the Kelvin waves on the intercomponent interaction through the change of the vortex core size of the vortical component. We also find the splitting of the Kelvin mode dispersion into gapless and gapfull branches when both components have overlapping single-quantized vortices.
