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Related papers: On Bubble Growth and Droplet Decay in Cosmological…

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We study how bubbles grow after the initial nucleation event in generic first-order cosmological phase transitions characterised by the values of latent heat, interface tension and correlation length, and driven by a scalar order parameter…

Astrophysics · Physics 2009-10-22 J. Ignatius , K. Kajantie , H. Kurki-Suonio , M. Laine

One of the most interesting questions regarding a possible first order cosmological quark--hadron phase transition concerns the final fate of the baryon number contained within the disconnected quark regions at the end of the transition. We…

High Energy Physics - Phenomenology · Physics 2009-10-28 L. Rezzolla

Assuming that the electroweak and QCD phase transitions are first order, upon supercooling, bubbles of the new phase appear. These bubbles grow to macroscopic sizes compared to the natural scales associated with the Compton wavelengths of…

High Energy Physics - Phenomenology · Physics 2009-10-22 P. Huet , K. Kajantie , R. G. Leigh , B. -H. Liu , L. McLerran

We simulate the decay of isolated, spherically symmetric droplets in a cosmological phase transition. It has long been posited that such heated droplets of the metastable state could form, and they have recently been observed in 3D…

Cosmology and Nongalactic Astrophysics · Physics 2023-01-04 Daniel Cutting , Essi Vilhonen , David J. Weir

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 propagating as…

Cosmology and Nongalactic Astrophysics · Physics 2014-05-21 Ariel Megevand , Federico Agustin Membiela

Two previous papers in this series have presented a study of the growth of hadronic bubbles during the cosmological Quark--Hadron transition, treating the material within each phase as a single perfect fluid. Here, we extend the analysis to…

Astrophysics · Physics 2009-10-22 J. C. Miller , L. Rezzolla

The cosmological remnants of a first-order phase transition generally depend on the perturbations that the walls of expanding bubbles originate in the plasma. Several of the formation mechanisms occur when bubbles collide and lose their…

Cosmology and Nongalactic Astrophysics · Physics 2011-10-17 Leonardo Leitao , Ariel Megevand

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…

High Energy Physics - Phenomenology · Physics 2016-08-25 S. M. Alamoudi , D. G. Barci , D. Boyanovsky , C. A. A. de Carvalho , E. S. Fraga , S. E. Joras , F. I. Takakura

The dynamical growth rate of bubbles nucleating in relativistic plasma in thermal first-order phase transitions is analyzed. The framework is a hydrodynamical model which consists of relativistic fluid and an order parameter field. The…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Ignatius

The breakup of a spherical droplet in a decaying homogeneous isotropic turbulence is studied by solving the Cahn-Hilliard-Navier-Stokes equations, using the discrete unified gas kinetic scheme combined with the free-energy-based phase-field…

Fluid Dynamics · Physics 2022-06-24 Jun Lai , Tao Chen , Shengqi Zhang , Zuoli Xiao , Shiyi Chen , Lian-Ping Wang

The study of the hydrodynamics of bubble growth in first-order phase transitions is very relevant for electroweak baryogenesis, as the baryon asymmetry depends sensitively on the bubble wall velocity, and also for predicting the size of the…

High Energy Physics - Phenomenology · Physics 2014-11-20 Jose R. Espinosa , Thomas Konstandin , Jose M. No , Geraldine Servant

We study the dynamics of cosmological phase transitions in the case of small velocities of bubble walls, $v_w<0.1$. We discuss the conditions in which this scenario arises in a physical model, and we compute the development of the phase…

Cosmology and Nongalactic Astrophysics · Physics 2018-03-14 Ariel Megevand , Santiago Ramirez

We propose an alternative mechanism of baryogenesis in which a scalar baryon undergoes a percolating first-order phase transition in the early Universe. The potential barrier that divides the phases contains explicit B and CP violation and…

High Energy Physics - Phenomenology · Physics 2015-06-05 Clifford Cheung , Alex Dahlen , Gilly Elor

We consider the (3+1) dimensional expansion and cooling of the chirally-restored and deconfined matter at finite net-baryon densities as expected in heavy-ion collisions at moderate energies. In our approach, we consider chiral fields and…

Nuclear Theory · Physics 2014-07-23 Christoph Herold , Marlene Nahrgang , Igor Mishustin , Marcus Bleicher

In first-order cosmological phase transitions, the asymptotic velocity of expanding bubbles is of crucial relevance for predicting observables like the spectrum of stochastic gravitational waves, or for establishing the viability of…

High Energy Physics - Phenomenology · Physics 2021-03-22 Shyam Balaji , Michael Spannowsky , Carlos Tamarit

We compute the dynamical prefactor in the nucleation rate of bubbles or droplets in first order phase transitions for the case where both viscous damping and thermal dissipation are significant. This result, which generalizes previous work…

High Energy Physics - Phenomenology · Physics 2009-10-22 Raju Venugopalan , Axel Vischer

In cosmological first-order phase transitions, the progress of true-vacuum bubbles is expected to be significantly retarded by the interaction between the bubble wall and the hot plasma. It has been claimed that this leads to a significant…

High Energy Physics - Phenomenology · Physics 2009-11-07 Matthew Lilley , Antonio Ferrera

Results for the kinetics of vapor-liquid transitions, following temperature quenches with different densities, are presented from the molecular dynamics simulations of a Lennard-Jones system. For critical density, bicontinuous liquid and…

Statistical Mechanics · Physics 2018-03-09 Sutapa Roy , Subir K. Das

We investigate the modes of deformation of an initially spherical bubble immersed in a homogeneous and isotropic turbulent background flow. We perform direct numerical simulations of the two-phase incompressible Navier-Stokes equations,…

Fluid Dynamics · Physics 2021-07-07 Stéphane Perrard , Aliénor Rivière , Wouter Mostert , Luc Deike

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 times. We use these…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-18 Ariel Megevand , Federico Agustin Membiela
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