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相关论文: The hydrodynamics of inverse phase transitions

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We use inelastic hard sphere molecular dynamics simulations and laboratory experiments to study patterns in vertically oscillated granular layers. The simulations and experiments reveal that {\em phase bubbles} spontaneously nucleate in the…

软凝聚态物质 · 物理学 2009-11-07 Sung Joon Moon , M. D. Shattuck , C. Bizon , Daniel I. Goldman , J. B. Swift , Harry L. Swinney

We give an improved estimate of primordial magnetic fields generated during cosmological first order phase transitions. We examine the charge distribution at the nucleated bubble wall and its dynamics. We consider instabilities on the…

天体物理学 · 物理学 2009-10-28 Guenter Sigl , Angela Olinto , Karsten Jedamzik

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…

高能物理 - 唯象学 · 物理学 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

We study the non-equilibrium steady-states of a one-dimensional ($1D1V$) fluid in a finite space region of length $L$. Particles interact among themselves by multi-particle collisions and are in contact with two thermal-wall heat…

统计力学 · 物理学 2021-03-08 Stefano Lepri , Guido Ciraolo , Pierfrancesco Di Cintio , Jamie Gunn , Roberto Livi

First order phase transitions in the early universe may have left a variety of experimentally accessible imprints. The dynamics of such transitions is governed by the density perturbations caused by the propagation of the bubble wall in the…

We study the effects of confinement between two parallel walls on a two dimensional fluid with competing interactions which lead to the formation of particle micro-domains at the thermodynamic equilibrium (microphases or microseparation).…

软凝聚态物质 · 物理学 2009-11-13 A. Imperio , L. Reatto

Domain wall networks are two-dimensional topological defects generally predicted in many beyond standard model physics. In this Letter, we propose to solve the domain wall problem with the first-order phase transition. We numerically study…

高能物理 - 唯象学 · 物理学 2023-04-12 Yang Li , Ligong Bian , Yongtao Jia

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 important…

宇宙学与河外天体物理 · 物理学 2017-04-26 Ariel Megevand , Santiago Ramirez

We investigate the dynamics of a strong first-order quark-hadron transition driven by cubic interaction via homogeneous bubble nucleation in the Friedberg-Lee model. The one-loop effective thermodynamics potential of the model and the…

高能物理 - 唯象学 · 物理学 2021-03-22 Shuying Zhou , Song Shu , Hong Mao

The broken-symmetry electroweak vacuum is destabilized in the presence of a magnetic field stronger than a critical value. Such magnetic field may be generated in the phase transition and restore the symmetry inside the bubbles. A numerical…

高能物理 - 唯象学 · 物理学 2009-10-31 R. Fiore , A. Tiesi , L. Masperi , A. Megevand

In the context of an Abelian gauge symmetry, spontaneously broken at a first-order transition, we discuss the evolution of the phase difference between the Higgs fields in colliding bubbles. We show that the effect of dissipation,…

高能物理 - 唯象学 · 物理学 2011-08-01 T. W. B. Kibble , Alexander Vilenkin

Three-dimensional (3D) turbulence is characterized by a dual forward cascade of both kinetic energy and helicity, a second inviscid flow invariant, from the integral scale of motion to the viscous dissipative scale. In helical flows,…

流体动力学 · 物理学 2017-05-31 Nicholas M. Rathmann , Peter D. Ditlevsen

We study various dynamical aspects of systems possessing a first order phase transition in their phase diagram. We isolate three qualitatively distinct types of theories depending on the structure of instabilities and the nature of the low…

高能物理 - 理论 · 物理学 2019-11-05 Loredana Bellantuono , Romuald A. Janik , Jakub Jankowski , Hesam Soltanpanahi

We discuss the possibility of forming primordial black holes during a first-order phase transition in the early Universe. As is well known, such a phase transition proceeds through the formation of true-vacuum bubbles in a Universe that is…

宇宙学与河外天体物理 · 物理学 2025-08-20 Michael J. Baker , Moritz Breitbach , Joachim Kopp , Lukas Mittnacht

If a theory has more than one classically stable vacuum, quantum tunneling and thermal jumps make the transition between the vacua possible. The transition happens through a first order phase transition started by nucleation of a bubble of…

高能物理 - 理论 · 物理学 2015-05-26 Ali Masoumi

We investigated the bubble collisions during the first order phase transitions. Numerical results indicate that within the certain range of parameters the collision of two bubbles leads to formation of separate relatively long-lived…

高能物理 - 理论 · 物理学 2007-05-23 I. Dymnikova , L. Koziel , M. Khlopov , S. Rubin

Many fluid-dynamical systems met in nature are quasi-two-dimensional: they are constrained to evolve in approximately two dimensions with little or no variation along the third direction. This has a drastic effect in the flow evolution…

流体动力学 · 物理学 2024-11-14 Alexandros Alexakis

Physical vacuum is a special superfluid medium populated by enormous amount of virtual particle-antiparticle pairs. Its motion is described by the modified Navier-Stokes equation: (a)~the pressure gradient divided by the mass density is…

量子物理 · 物理学 2016-09-13 Valeriy I. Sbitnev

In this work we investigate, by means of direct numerical simulations, how rotation affects the bi-dimensionalization of a turbulent flow. We study a thin layer of fluid, forced by a two-dimensional forcing, within the framework of the…

流体动力学 · 物理学 2015-06-18 Enrico Deusebio , Guido Boffetta , Erik Lindborg , Stefano Musacchio

Fluid turbulence is commonly associated with stronger drag, greater heat transfer, and more efficient mixing than in laminar flows. In many natural and industrial settings, turbulent liquid flows contain suspensions of dispersed bubbles and…

流体动力学 · 物理学 2020-05-29 Varghese Mathai , Detlef Lohse , Chao Sun