Turbulent contributions to Ohm's law in axisymmetric magnetized plasmas
The effect of magnetic turbulence in shaping the current density profile in axisymmetric magnetized plasmas is analyzed using a turbulent extension of Ohm's law derived from the self-consistent action-angle transport theory. Besides the well-known hyper-resistive (helicity conserving) contribution, the generalized Ohm's law contains an anomalous resistivity term and a turbulent bootstrap-like term proportional to the current density derivative.