Impact of primordial magnetic fields on the first-order electroweak phase transition

Physical review. D/Physical review. D. 2026 Open access

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Authors: Yuefeng Di, Ligong Bian, Rong-Gen Cai
DOI: 10.1103/jrd3-s1h2
Cited by: 1
References: 106

Abstract

We numerically study how the primordial magnetic field affects the first-order electroweak phase transition in the early Universe. We observe the following: 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 g ′ B Y e x / m W 2 ≳ 3.63 ; and, 3) the helical hypermagnetic field can dramatically enhance the sphaleron rate and validate the generation of the baryon asymmetry through the chiral anomaly.

Fields of Study & Subjects

Particle physics theoretical and experimental studies Cosmology and Gravitation Theories High-Energy Particle Collisions Research

Publication details

Journal / source
Physical review. D/Physical review. D.
Publisher
American Physical Society (APS)
Volume
113
Issue
4
Publication date
30 January 2026
Language
EN