论文标题
在衍生膨胀的一阶内增强不变的自旋流体动力学
Boost invariant spin hydrodynamics within the first order in derivative expansion
论文作者
论文摘要
在数值上解决了限制在梯度中的一阶项的自旋流体力学的增强不变方程。一阶始终将旋转密度张量与自旋化学电势相关的状态旋转方程。根据其形式及其自旋传输系数的结构，我们发现在10 fm/c的被考虑的进化时间内既稳定又不稳定的溶液。这些发现与最近鉴定的稳定和不稳定模式相辅相成，用于通过相似的流体动力框架描述的扰动均匀的自旋系统。
Boost-invariant equations of spin hydrodynamics confined to the first-order terms in gradients are numerically solved. The spin equation of state, relating the spin density tensor to the spin chemical potential, is consistently included in the first order. Depending on its form and the structure of the spin transport coefficients, we find solutions which are both stable and unstable within the considered evolution times of 10 fm/c. These findings are complementary to the recent identification of stable and unstable modes for perturbed uniform spin systems described by similar hydrodynamic frameworks.
