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Friction forces on phase transition fronts
(Iop Publishing, 2013-07)
In cosmological first-order phase transitions, the microscopic interaction of the phase transition fronts with non-equilibrium plasma particles manifests itself macroscopically as friction forces. In general, it is a ...
Gravitational waves from a very strong electroweak phase transition
(IOP Publishing, 2016-05)
We investigate the production of a stochastic background of gravitational waves in the electroweak phase transition. We consider extensions of the Standard Model which can give very strongly first-order phase transitions, ...
Lower bound on the electroweak wall velocity from hydrodynamic instability
(Iop Publishing, 2015-03)
The subsonic expansion of bubbles in a strongly first-order electroweak phase transition is a convenient scenario for electroweak baryogenesis. For most extensions of the Standard Model, stationary subsonic solutions (i.e., ...
Hydrodynamics of phase transition fronts and the speed of sound in the plasma
(Elsevier Science, 2014-12)
The growth of bubbles in cosmological first-order phase transitions involves nontrivial hydrodynamics. For that reason, the study of the propagation of phase transition fronts often requires several approximations. A ...
Stability of cosmological deflagration fronts
(American Physical Society, 2014-05)
In a cosmological first-order phase transition, bubbles of the stable phase nucleate and expand in the supercooled metastable phase. In many cases, the growth of bubbles reaches a stationary state, with bubble walls ...
Stability of cosmological detonation fronts
(American Physical Society, 2014-04)
The steady state propagation of a phase transition front is classified, according to hydrodynamics, as a deflagration or a detonation, depending on its velocity with respect to the fluid. These propagation modes are further ...
Bubble wall correlations in cosmological phase transitions
(American Physical Society, 2020-11-12)
We study statistical relationships between bubble walls in cosmological first-order phase transitions. We consider the conditional and joint probabilities for different points on the walls to remain uncollided at given ...
Transition between phantom and non-phantom phases with time-dependent cosmological constant and Cardy-Verlinde formula
(2011)
We investigate the transition phenomenon of the universe between a phantom and a non-phantom phase. Particular attention is devoted to the case in which the cosmological constant depends on time and is proportional to the ...
Bubble nucleation and growth in very strong cosmological phase transitions
(Elsevier Science, 2017-06)
Strongly first-order phase transitions, i.e., those with a large order parameter, are characterized by a considerable supercooling and high velocities of phase transition fronts. A very strong phase transition may have ...