  The long-thought charge Kondo effects have recently been experimentally
realized in the quantum Hall regime. This experiment, supported by numerics,
exemplifies the realization of two-channel Kondo state, a non-Fermi Liquid, and
its crossover to the one-channel counterpart, a Fermi liquid. Scaling up such a
platform, we find a hierarchy of non-Fermi Liquids and their tunable crossovers
based on a renormalization group analysis. Utilizing results from a conformal
field theory, we further examine the universal conductances of this strongly
correlated system and their finite temperature scaling, which elucidate the
sharp distinctions between charge and spin Kondo physics.
