论文标题
非分类偶极胶气中的热雾性流体动力学
Thermoviscous Hydrodynamics in Non-Degenerate Dipolar Bose Gases
论文作者
论文摘要
我们提出了一个超速流体动力学模型，但尚未凝结偶极骨气体。这样的系统同时呈现$ s $波和偶极散射，后者导致导热性和粘度的各向异性传输张量。这项工作提出了粘度张量系数的分析推导，并利用[Wang等，Arxiv：2205.10465]中建立的方法，其中得出了热导电率。综上所述，这些传输量允许对现在用偶极各向异性点缀的流体动力学进行全面描述。线性波中衰减的分析说明了这种各向异性在偶极流体中的影响，在此我们发现相对于波传播方向的偶极方向明显依赖。
We present a hydrodynamic model of ultracold, but not yet quantum condensed, dipolar Bosonic gases. Such systems present both $s$-wave and dipolar scattering, the latter of which results in anisotropic transport tensors of thermal conductivity and viscosity. This work presents an analytic derivation of the viscosity tensor coefficients, utilizing the methods established in [Wang et al., arXiv:2205.10465], where the thermal conductivities were derived. Taken together, these transport tensors then permit a comprehensive description of hydrodynamics that is now embellished with dipolar anisotropy. An analysis of attenuation in linear waves illustrates the effect of this anisotropy in dipolar fluids, where we find a clear dependence on the dipole orientation relative to the direction of wave propagation.
