论文标题
受约束的一维偶极玻色子中呼吸模式的极化角依赖性
Polarization angle dependence of the breathing modes in confined one-dimensional dipolar bosons
论文作者
论文摘要
探测被困量子系统的径向集体振荡是研究相互作用和维度效应的准确实验工具。我们考虑一个完全极化的准二极量子气体在零温度下的抛物线陷阱中的骨化剂量障碍原子。我们在单模近似中使用有效的准二维哈密顿量对偶极气体进行建模，并使用基于Lieb-Liniger Gas Bethe Ansatz波函数或扰动理论的变异近似来得出状态方程。我们计算呼吸模式频率，同时通过总结方法改变极化角度，并与最近的实验发现非常吻合。
Probing the radial collective oscillation of a trapped quantum system is an accurate experimental tool to investigate interactions and dimensionality effects. We consider a fully polarized quasi-one dimensional dipolar quantum gas of bosonic dysprosium atoms in a parabolic trap at zero temperature. We model the dipolar gas with an effective quasi-one dimensional Hamiltonian in the single-mode approximation, and derive the equation of state using a variational approximation based on the Lieb-Liniger gas Bethe Ansatz wavefunction or perturbation theory. We calculate the breathing mode frequencies while varying polarization angles by a sum-rule approach, and find them in good agreement with recent experimental findings.
