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We examine transport in a holographic model which describes, through anonlinear gauge field sector, generic nonlinear interactions between the chargecarriers. Scaling exponents are introduced by using geometries which arenonrelativistic and hyperscaling-violating in the infrared. In the dilutecharge limit in which the gauge field sector does not backreact on thegeometry, a particularly simple nonlinear theory reproduces the anomaloustemperature dependence of the resistivity and Hall angle of the cuprate strangemetals, $R \sim T$ and $\cot\Theta_H \sim T^2$ while also allowing for a linearentropy $S \sim T$, and predicts that the magnetoresistance for small values ofthe magnetic field $h$ should scale as $\sim h^2 T^{-4}$. Our study lendsevidence to the idea that the strange metal behavior of the cuprates reliescrucially on the linear temperature dependence of the entropy.

Anomalous scalings of the cuprate strange metals from nonlinear electrodynamics