Chiral Fluid Dynamics and Collapse of Vacuum Bubbles
Abstract
We study the expansion dynamics of a quark-antiquark plasma droplet from an initial state with restored chiral symmetry. The calculations are made within the linear model scaled with an additional scalar field representing the gluon condensate. We solve numerically the classical equations of motion for the meson fields coupled to the fluid-dynamical equations for the plasma. Strong space-time oscillations of the meson fields are observed in the course of the chiral transition. A new phenomenon, the formation and collapse of vacuum bubbles, is also predicted. The particle production due to the bremsstrahlung of the meson fields is estimated.
Keywords
Cite
@article{arxiv.hep-ph/9804338,
title = {Chiral Fluid Dynamics and Collapse of Vacuum Bubbles},
author = {Igor N. Mishustin and Ove Scavenius},
journal= {arXiv preprint arXiv:hep-ph/9804338},
year = {2009}
}
Comments
12 pages Revtex,5 figures, Figures modified, minor changes in text. To be published in Phys. Rev. Lett