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arXiv · hep-ph/9804338

Chiral Fluid Dynamics and Collapse of Vacuum Bubbles

Igor N. Mishustin·Ove Scavenius
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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 $σ$ 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.

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Igor N. Mishustin, Ove Scavenius. 1999-09-09. Chiral Fluid Dynamics and Collapse of Vacuum Bubbles. https://doi.org/10.1103/physrevlett.83.3134

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