  I use the holographic gauge/gravity duality to systematically calculate the
jet quenching parameters in strongly coupled anisotropic plasmas in the
presence of external magnetic fields. The magnetic field breaks down spatial
rotation symmetry from $SO(3)$ to $SO(2)$, leading to the presence of multiple
anisotropic jet quenching parameters, which are evaluated here in two quite
different holographic settings. One of them corresponds to a top-down
deformation of the strongly coupled $\mathcal{N} = 4$ Super Yang-Mills plasma
triggered by an external magnetic field, while the other one is a bottom-up
Einstein-Maxwell-Dilaton model of phenomenological relevance for high energy
peripheral heavy ion collisions, since it is able to provide a quantitative
description of $(2+1)$-flavors lattice QCD thermodynamics with physical quark
masses at zero and nonzero magnetic fields. I find for both models an overall
enhancement of all the anisotropic jet quenching parameters with increasing
magnetic fields. Moreover, I also conclude that for both models transverse
momentum broadening is larger in transverse directions than in the direction of
the magnetic field. Since these conclusions are shown to hold for two rather
different holographic setups at finite temperature and magnetic fields, they
are suggested as fairly robust features of strongly coupled anisotropic
magnetized plasmas.
