Magnetoresistance in relativistic hydrodynamics without anomalies

Magnetoresistance in relativistic hydrodynamics without anomalies

Blog Article

Abstract We present expressions for the magnetoconductivity and the magnetoresistance of a strongly interacting metal in 3 + 1 dimensions, derivable from relativistic hydrodynamics.Such an approach is suitable for ultraclean metals with Fan Shop - Oilers - Hats emergent Lorentz invariance.When this relativistic fluid contains chiral anomalies, it is known to exhibit longitudinal negative magnetoresistance.We show that similar effects can arise in non-anomalous relativistic fluids due to the distinctive gradient expansion.

In contrast with a Galilean-invariant fluid, the resistivity tensor of a dirty relativistic fluid exhibits similar angular dependence to negative magnetoresistance, even when the constitutive relations and momentum relaxation rate are isotropic.We further account for the effect of magnetic field-dependent corrections to the gradient expansion and the effects of long-wavelength impurities on magnetoresistance.We note that the Water Dispenser Lever holographic D3/D7 system exhibits negative magnetoresistance.