论文标题
自旋流体力学中的交叉效应：重访熵分析和统计操作员
Cross effects in spin hydrodynamics: A revisit Entropy analysis and statistical operator
论文作者
论文摘要
我们重新审视了一阶自旋流体动力学的构建，并发现宪法关系从旋转轨道耦合产生的交叉效应中获得了校正。从常规的熵分析开始，我们展示了如何从第二种热力学定律中识别交叉效应和新的交叉传输系数。有趣的是，常规的传输系数热电导率$κ$由跨运输系数的乘积从下面界定，这意味着热传导的阈值已更改。借助Zubarev的非平衡统计操作员，我们以更严格的方式重现了一阶自旋流体动力学的构建和交叉效应的鉴定。通过寻求正常模式的分散关系，我们发现这些交叉效应抑制了传统流体动力学中出现的声音模式的衰减和热模式的衰减，并且对非流动力自旋模式的阻尼有影响。
We revisit the construction of first-order spin hydrodynamics and find that the constitution relations receive the corrections from the cross effects resulting from spin-orbit coupling. Starting from a routine entropy analysis, we show how to identify cross effects and new cross transport coefficients from the second law of thermodynamics. Interestingly, the conventional transport coefficient heat conductivity $κ$ is bounded from below by the product of cross transport coefficients, which means the threshold of heat conduction is changed. With recourse to Zubarev's non-equilibrium statistical operator, we reproduce the construction of first-order spin hydrodynamics and identification of cross effects in a more rigorous way. By seeking the dispersion relations of normal modes, we find that these cross effects suppress the attenuation of sound modes and heat mode appearing in conventional hydrodynamics and also have impacts on the damping of non-hydrodynamic spin modes.
