Instability and subsequent evolution of electroweak bubbles
Bubbles in a first-order electroweak phase transition are nucleated with radii R0 and expand with velocity v. If v is subsonic, a bubble becomes unstable to nonspherical perturbations when its radius is roughly 10^4R0. These perturbations acclerate the transition, and the effective velocity of bubble growth rapidly becomes supersonic. The transition should subsequently proceed spherically via detonation. If for some reason the onset of detonation is postponed, the surface area of the bubbles may be enhanced by 10^5. We discuss consequences for electroweak baryogenesis.
Additional Information© 1992 The American Physical Society Received 4 August 1992 We thank A. Burrows, G. Fuller, P. Pinto, and K. Rajaopal for useful discussions. M.K. was supported in part by the Texas National Research Laboratory Commission. K.F. was supported in part by a Presidential Young Investigator award, a Sloan Foundation Fellowship, and by NSF Grant No. NSF-PHY-92-96020. M.K. acknowledges the hospitality of the Center for Particle Astrophysics and Lawrence Berkely Laboratory, and K.F. the hospitality of the ITP at Sanata Barbara and the Aspen Center for Physics.
Published - KAMprl92b.pdf