论文标题
手性扰动理论中流体动力亲的动力学
Kinetics of hydrodynamic pions in chiral perturbation theory
论文作者
论文摘要
我们使用手性扰动理论在有限温度接近手性极限下使用手性扰动理论来确定Ultrasoft Pions的动力系数。这用于计算这些斜向波的流体动力学有效理论中的轴向电荷扩散和阻尼系数。我们表明，要为这些系数提供领先的订单答案，需要探索硬，柔软和Ultrasoft Pion模式的动态，这些模式由适当的动力学和流体动力描述在显微镜上表示。
We determine the kinetic coefficients of ultrasoft pions using chiral perturbation theory at finite temperature close to the chiral limit. This is used to compute the axial charge diffusion and damping coefficients in the hydrodynamic effective theory for these pion waves. We show that to provide a leading order answer for these coefficients one needs to explore the dynamics of hard, soft, and ultrasoft pion modes, which are represented microscopically by the appropriate kinetic and hydrodynamic descriptions..
