Resonance Localization and Poloidal Electric Field due to Cyclotron Wave Heating in Tokamak Plasmas

The perpendicular heating in cyclotron waves tends to pile up the resonant particles toward the low magnetic field side with their banana tips localized to the resonant surface. A poloidal electric field with an $\overrightarrow{\mathrm{E}}\times \overrightarrow{\mathrm{B}}$ drift comparable to the ion vertical drift in a toroidal magnetic field may result. With the assumption of anomalous electron and neoclassical ion transport, density variations due to wave heating are discussed.