Non-abelian dynamics in first-order cosmological phase transitions
  Bubble collisions in cosmological phase transitions are explored, taking the non-abelian character of the gauge fields into account. Both the QCD and electroweak phase transitions are considered. Numerical solutions of the field equations in several limits are presented. 
Mikkel B. Johnson, L. S. Kisslinger, E. M. Henley, W.-Y. P. Hwang, and   T. Stevens