强偶极玻色子$^{162}$ Dy和$^{164}$ Dy的s波散射长度
s-wave scattering lengths of the strongly dipolar bosons $^{162}$Dy and $^{164}$Dy
摘要：
我们测量了高磁性元素镝的两种玻色子同位素的三重态s分波散射长度$a$：$^{162}$ Dy的$a=122(10)a_0$和$^{164}$ Dy的$a=92(8)a_0$，其中$a_0$是玻尔半径。散射长度由这些Dy同位素的超冷气体在量子简并度以上的温度下的跨维弛豫决定。在此温度范围内，测得的再热动力学可以比较使用直接模拟蒙特卡罗（DSMC）方法采用偶极粒子的各向异性微分散射截面的玻尔兹曼方程的模拟。
英文摘要：
We report the measurement of the triplet s-partial-wave scattering length $a$ of two bosonic isotopes of the highly magnetic element, dysprosium: $a=122(10)a_0$ for $^{162}$Dy and $a=92(8)a_0$ for $^{164}$Dy, where $a_0$ is the Bohr radius. The scattering lengths are determined by the cross-dimensional relaxation of ultracold gases of these Dy isotopes at temperatures above quantum degeneracy. In this temperature regime, the measured rethermalization dynamics can be compared to simulations of the Boltzmann equation using a direct-simulation Monte Carlo (DSMC) method employing the anisotropic differential scattering cross section of dipolar particles.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
