Magnetic field generation from bubble collisions during first-order phase transition

Jing Yang; Ligong Bian

Magnetic field generation from bubble collisions during first-order phase transition

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arxiv 2102.01398 v1 pith:LKUIA5NM submitted 2021-02-02 astro-ph.CO hep-phhep-th

Jing Yang , Ligong Bian This is my paper

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We study the magnetic fields generation from the cosmological first-order electroweak phase transition. We calculate the magnetic field induced by the variation of the Higgs phase for two bubbles and three bubbles collisions. Our study shows that electromagnetic currents in the collision direction produce the ring-like magnetic field in the intersect regions of colliding bubbles, which may seed the primordial magnetic field that are constrained by intergalatic field observations.

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