论文标题
相互作用的非中心金属中的异常流体动力转运
Anomalous Hydrodynamic Transport in Interacting Noncentrosymmetric Metals
论文作者
论文摘要
在具有足够强的动量散射的高导电金属中，电子动量被认为是长寿命的数量，其动力学由新兴的流体动力学理论描述。在本文中，我们开发了一种用于非中心金属的电子流体力学理论，其中一种新型的电子流体是通过降低晶体对称性和产生的几何作用来实现的。获得的流体动力方程表明，在真空中，非中心金属中的电子流体与手性流体之间的非平凡类比，并预测了新型的流体动力转运现象，即不对称的Poiseuille流动流动和异常的边缘。我们的理论还提供了各种异常转运现象（例如量子非线性霍尔效应）的流体动力描述。此外，我们对流体动力方程式进行了对称的考虑，并提出了几种实验设置，以实现现有的流体动力学材料（包括双层石墨烯和Weyl semimimitals）中这种异常的流体动力转运。
In highly conductive metals with sufficiently strong momentum-conserving scattering, the electron momentum is regarded as a long-lived quantity, whose dynamics is described by an emergent hydrodynamic theory. In this paper, we develop an electron hydrodynamic theory for noncentrosymmetric metals, where a novel class of electron fluids is realized by lowering crystal symmetries and the resulting geometrical effects. The obtained hydrodynamic equation suggests a nontrivial analogy between electron fluids in noncentrosymmetric metals and chiral fluids in vacuum, and predicts novel hydrodynamic transport phenomena, that is, asymmetric Poiseuille flow and anomalous edge current. Our theory also gives a hydrodynamic description of the counterpart of various anomalous transport phenomena such as the quantum nonlinear Hall effect. Furthermore, we give a symmetry consideration on the hydrodynamic equation and propose several experimental setups to realize such anomalous hydrodynamic transport in the existing hydrodynamic materials, including bilayer graphene and Weyl semimetals.
