The Eeect of Silk Damping on Primordial Magnetic Elds
نویسندگان
چکیده
We study the eeects of plasma viscosity on the dynamics of primordial magnetic elds by simulating magnetohydrodynamics in the early universe by appropriate non-linear cascade models. We nd numerically that even in the presence of large kinetic viscosity, magnetic energy is transferred to large length scales. There are indications, however, that the inverse cascade stops at a given time which depends on the magnitude of viscosity. For realistic viscosities we do not nd equipartition between magnetic and kinetic energies.
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