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Simulations of a bubble wall interacting with an electroweak plasma

Mou, Zong-Gang; Saffin, Paul M.; Tranberg, Anders


Zong-Gang Mou

Anders Tranberg


We perform large-scale real-time simulations of a bubble wall sweeping through an out-of-equilibrium plasma. The scenario we have in mind is the electroweak phase transition, which may be first order in extensions of the Standard Model, and produce such bubbles. The process may be responsible for baryogenesis and can generate a background of primordial cosmological gravitational waves. We study thermodynamic features of the plasma near the advancing wall, the generation of Chern-Simons number/Higgs winding number and consider the potential for CP-violation at the wall generating a baryon asymmetry. A number of technical details necessary for a proper numerical implementation are developed.


Mou, Z., Saffin, P. M., & Tranberg, A. (2021). Simulations of a bubble wall interacting with an electroweak plasma. Journal of High Energy Physics, 2021(2), Article 189.

Journal Article Type Article
Acceptance Date Jan 8, 2021
Online Publication Date Feb 22, 2021
Publication Date 2021-02
Deposit Date Feb 26, 2021
Publicly Available Date Feb 26, 2021
Journal Journal of High Energy Physics
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 2021
Issue 2
Article Number 189
Keywords Nuclear and High Energy Physics
Public URL
Publisher URL


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