Cross-field diffusion in magnetized plasma due to parametric excitation of convective cells

Summary form only given, as follows. Cross-field diffusion due to the convective cells in a magnetoactive uniform plasma has been of current interest in plasma physics. In present report the diffusion in turbulent plasma under conditions of parametric interaction of lower hybrid waves with short-wavelength (k/spl rho//sub /spl perp/i/>>1, k/sub z/=0) and long-wavelength (k/spl rho//sub /spl perp/i/<<1, k/sub Z/ /spl ne/0) convective cell modes is studied. For the parametric decay of lower-hybrid pump wave into a daughter wave and the modified convective cells plasma diffusion coefficient is found. Numerical calculations show that the diffusion term due to the pump wave is dominated in comparison with the diffusion which takes place in the plasma in the presence of the thermal fluctuations only. The present results can be of interest for the investigation of anomalous transport processes in laboratory and space plasmas.