标题： 在周期势中的流体动力学局部量子临界金属中的自然异常回旋共振响应 显示英文标题

标题： Natural anomalous cyclotron response in a hydrodynamic local quantum critical metal in a periodic potential

摘要： 我们研究在存在晶格的情况下量子临界金属中的直流磁输运。在输运为流体动力学的区域，洛伦兹力与晶格的相互作用导致了对回旋频率的自然异常贡献，使其从其规范的电荷与质量比发生变化。此效应的大小是普遍的，因为它仅由热力学量决定。值得注意的是，德鲁德权重以这样的方式变化，使得在晶格强度的次领头阶下，霍尔电阻率和霍尔系数不会改变，尽管霍尔角会改变。我们通过奇异金属的全息模型数值模拟确认了我们的结果。对于弱晶格强度，这些流体动力学效应被证明存在。数值模拟还表明，超出流体动力学区域的强晶格效应可能为铜氧化物奇异金属实验观察到的异常霍尔响应提供一种解释。 显示英文摘要

摘要： We study DC magnetotransport in a quantum critical metal in the presence of a lattice. In the regime where the transport is hydrodynamical the interplay of the Lorentz force and the lattice gives rise to a natural anomalous contribution to the cyclotron frequency that changes it from its canonical charge-to-mass ratio. The size of this effect is universal as it is determined only by thermodynamic quantities. Remarkably the Drude weight changes in such a way that to first subleading order in the lattice strength the Hall resistivity and Hall coefficient do not change, though the Hall angle does change. We confirm our results with numerical simulations in a holographic model of a strange metal. For weak lattice strength these hydrodynamic effects are shown to be present. The numerical simulations also suggest that strong lattice effects beyond a hydrodynamic regime may provide a resolution to the experimentally observed anomalous Hall response of cuprate strange metals.