Hydrodynamic Stability Analysis of Burning Bubbles in Electroweak Theory and in QCD

Details Hydrodynamic Stability Analysis of Burning Bubbles in Electroweak Theory and in QCD Hydrodynamic Stability Analysis of Burning Bubbles in Electroweak Theory and in QCD

1992-12-05

arxiv.org/abs/hep-ph/9212224v3

Phys.Rev. D48 (1993) 2477-2492

Physics

High Energy Physics

High Energy Physics - Phenomenology

preprint # SLAC-PUB-5943, SCIPP 92/56 38 pages, 10 figures (submitted via `uufiles'), phyzzx format minor snafus repaired

Scientific paper

10.1103/PhysRevD.48.2477

Assuming that the electroweak and QCD phase transitions are first order, upon supercooling, bubbles of the new phase appear. These bubbles grow to macroscopic sizes compared to the natural scales associated with the Compton wavelengths of particle excitations. They propagate by burning the old phase into the new phase at the surface of the bubble. We study the hydrodynamic stability of the burning and find that for the velocities of interest for cosmology in the electroweak phase transition, the shape of the bubble wall is stable under hydrodynamic perturbations. Bubbles formed in the cosmological QCD phase transition are found to be a borderline case between stability and instability.

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