No Primordial Magnetic Field from Domain Walls

Details No Primordial Magnetic Field from Domain Walls No Primordial Magnetic Field from Domain Walls

2000-07-12

arxiv.org/abs/hep-ph/0007123v2

Phys.Lett. B491 (2000) 311-316

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages. Modified discussion of the baryon density on an axion domain wall

Scientific paper

10.1016/S0370-2693(00)01044-3

It is pointed out that, contrary to some claims in the literature, the domain walls cannot be a source of a correlated at large scales primordial magnetic field, even if the fermionic modes bound on the wall had ferromagnetic properties. In a particular model with massive (2+1) dimensional fermions bound to a domain wall, previously claimed to exhibit a ferromagnetic behavior, it is explicitly shown that the fermionic system in fact has properties of a normal diamagnetic with the susceptibility vanishing at high temperature.

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