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Perfect Fluid Hydrodynamic Picture of Domain Wall Velocities at Strong Coupling
Romuald A Janik1, Matti Järvinen2,3, Hesam Soltanpanahi1
1Institute of Theoretical Physics, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland.
Abstract:
We show that for a range of strongly coupled theories with a first order phase transition, the domain wall or bubble velocity can be expressed in a simple way in terms of a perfect fluid hydrodynamic formula, and thus in terms of the equation of state. We test the predictions for the domain wall velocities using the gauge/gravity duality.
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