论文标题
偶极玻色 - 因斯坦冷凝水的自结界状态的理论
Theory for Self-Bound States of Dipolar Bose-Einstein Condensates
论文作者
论文摘要
我们研究了与高斯州立大学的偶极染色的自结界状态，该状态可以改善传统的相干状态ANSATZ，其多模挤压相干状态。我们表明，自我结合的状态由实验观察到的自结合液相和未观察到的自限气相组成。数值获得的气液边界与实验数据非常吻合。我们的理论还允许一个人从冷凝水的颗粒数分布中提取Dy原子的三体偶联常数的实际部分。特别是，我们的结果表明，自我结合的状态被短期三体排斥而稳定。我们的研究散发出不同的光，以了解Bose-Einstein冷凝水的自结界液滴。
We investigate the self-bound states of dipolar Dy condensates with the Gaussian-state ansatz which improves the conventional coherent-state ansatz with multimode squeezed coherent states. We show that the self-bound states consist of the experimentally observed self-bound liquid phase and the unobserved self-bound gas phase. The numerically obtained gas-liquid boundary is in good agreement with experimental data. Our theory also allows one to extract the real part of the three-body coupling constant of the Dy atoms from the particle number distribution of the condensates. In particular, we results show that the self-bound states are stabilized by the short-range three-body repulsion. Our study shed a different light to understand the self-bound droplets of Bose-Einstein condensates.
