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Dynamo in helical MHD turbulence: quantum field theory approach
M. Hnatich1 - M. Jurcisin2 - M. Stehlik1
1 Institute of Experimental Physics of Slovak Academy of Sciences 04353 Ko\v[s]ice, Slovakia }
2 Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia }
Abstract
A quantum field model of helical MHD stochastically forced by gaussian hydrodynamic, magnetic and mixed noises is investigated. These helical noises lead to an exponential increase of magnetic fluctuations in the large scale range. Instabilities, which are produced in this process, are eliminated by spontaneous symmetry breaking mechanism accompanied by creation of a homogeneous stationary magnetic field. Figs 2, Refs 10.