论文标题
量子厅有效的各向异性狄拉克半金属的动作
Quantum Hall effective action for anisotropic Dirac semi-metal
论文作者
论文摘要
我们提出了一项关于半迪拉克临界阶段的霍尔运输的研究。该结构基于具有空间各向异性的相对论系统的协变。几何数据与外部电磁场一起用于设计一种扩展程序，该过程导致与我们施加的离散$ pt $对称性一致的低能有效作用。我们使用该动作讨论促成大厅运输的术语并提取系数。我们还讨论了相关的缩放对称性。
We present a study of Hall transport in semi-Dirac critical phases. The construction is based on a covariant formulation of relativistic systems with spatial anisotropy. Geometric data together with external electromagnetic fields is used to devise an expansion procedure that leads to a low-energy effective action consistent with the discrete $PT$ symmetry that we impose. We use the action to discuss terms contributing to the Hall transport and extract the coefficients. We also discuss the associated scaling symmetry.
