Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-04-19
Phys.Rev. D60 (1999) 125003
Physics
High Energy Physics
High Energy Physics - Phenomenology
40 pages, 4 figures, revtex, minor changes, to be published in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.60.125003
We study the viscosity corrections to the growth rate of nucleating bubbles in a first order phase transition in scalar field theory. We obtain the non-equilibrium equation of motion of the coordinate that describes small departures from the critical bubble and extract the growth rate consistently in weak coupling and in the thin wall limit. Viscosity effects arise from the interaction of this coordinate with the stable quantum and thermal fluctuations around a critical bubble. In the case of 1+1 dimensions we provide an estimate for the growth rate that depends on the details of the free energy functional. In 3+1 dimensions we recognize robust features that are a direct consequence of the thin wall approximation and give the leading viscosity corrections.These are long-wavelength hydrodynamic fluctuations that describe surface waves, quasi-Goldstone modes which are related to ripples on interfaces in phase ordered Ising-like systems. We discuss the applicability of our results to describe the growth rate of hadron bubbles in a quark-hadron first order transition.
Alamoudi Saeed M.
Barci Daniel G.
Boyanovsky Daniel
de Carvalho Carlos A. A.
Fraga Eduardo S.
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