Impact of Primordial Magnetic Fields on the First-Order Electroweak Phase Transition
High Energy Physics - Phenomenology
2025-08-12 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Lattice
High Energy Physics - Theory
Abstract
We numerically study how the primordial magnetic field affects the first-order electroweak phase transition in the early Universe. We observe that: 1) the phase transition process would be slowed down by the magnetic field; 2) the phenomenon of vortex structure of the Higgs condensation appears when the homogenesis hypermagentic field ; and, 3) the helical hypermagnetic field can dramatically enhance the sphaleron rate and validate the generation of the baryon asymmetry through the chiral anomaly.
Keywords
Cite
@article{arxiv.2508.07416,
title = {Impact of Primordial Magnetic Fields on the First-Order Electroweak Phase Transition},
author = {Yuefeng Di and Ligong Bian and Rong-Gen Cai},
journal= {arXiv preprint arXiv:2508.07416},
year = {2025}
}
Comments
16 pages, 16 figures