论文标题
采取手性磁流失动力学的有效作用
Towards an effective action for chiral magnetohydrodynamics
论文作者
论文摘要
我们考虑手性磁性水力动力学，即有限温度系统，由于轴向$ u（1）$电流无法保守，这是由于Adler-Bell-Jackiw异常被动态操作员$ F_ {μf_{μNν} \ tilde {f} \ tilde {f}^{f}^{μν} $。我们以与磁通量保护相关的1形对称性来表达这种异常，并研究其在有限温度下的实现。我们从有效的理论观点（包括手性的分离和磁效应）提出了欧几里得生成动力学的功能和耗散作用方法。我们还讨论了我们形式主义中不可固化的轴向对称缺陷算子的构建。
We consider chiral magnetohydrodynamics, i.e. a finite-temperature system where an axial $U(1)$ current is not conserved due to an Adler-Bell-Jackiw anomaly saturated by the dynamical operator $F_{μν} \tilde{F}^{μν}$. We express this anomaly in terms of the 1-form symmetry associated with magnetic flux conservation and study its realization at finite temperature. We present Euclidean generating functional and dissipative action approaches to the dynamics and reproduce some aspects of chiral MHD phenomenology from an effective theory viewpoint, including the chiral separation and magnetic effects. We also discuss the construction of non-invertible axial symmetry defect operators in our formalism.
