  We report on measurements of a charge-dependent flow using a novel
three-particle correlator with ALICE in Pb-Pb collisions at the LHC, and
discuss the implications for observation of local parity violation and the
Chiral Magnetic Wave (CMW) in heavy-ion collisions. Charge-dependent flow is
reported for different collision centralities as a function of the event charge
asymmetry. While our results are in qualitative agreement with expectations
based on the CMW, the nonzero signal observed in higher harmonics correlations
indicates a possible significant background contribution. We also present
results on a differential correlator, where the flow of positive and negative
charges is reported as a function of the mean charge of the particles and their
pseudorapidity separation. We argue that this differential correlator is better
suited to distinguish the differences in positive and negative charges expected
due to the CMW and the background effects, such as local charge conservation
coupled with strong radial and anisotropic flow.
