Primordial magnetic fields at preheating

Details Primordial magnetic fields at preheating Primordial magnetic fields at preheating

2007-10-02

arxiv.org/abs/0710.0580v1

PoSLAT2007:052,2007

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages. Talk presented at Lattice2007

Scientific paper

Using lattice techniques we investigate the generation of long range cosmological magnetic fields during a cold electroweak transition. We will show how magnetic fields arise, during bubble collisions, in the form of magnetic strings. We conjecture that these magnetic strings originate from the alignment of magnetic dipoles associated with EW sphaleron-like configurations. We also discuss the early thermalisation of photons and the turbulent behaviour of the scalar fields after tachyonic preheating.

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