The effect of Silk damping on primordial magnetic fields

Details The effect of Silk damping on primordial magnetic fields The effect of Silk damping on primordial magnetic fields

1996-08-23

arxiv.org/abs/hep-ph/9608422v1

Phys.Lett. B392 (1997) 395-402

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, LaTeX type, 4 ps figures included

Scientific paper

10.1016/S0370-2693(96)01566-3

We study the effects of plasma viscosity on the dynamics of primordial magnetic fields by simulating magnetohydrodynamics in the early universe by appropriate non-linear cascade models. We find 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 find equipartition between magnetic and kinetic energies.

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