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The universe cools down monotonically following its expansion.This generates a sequence of phase transitions. If a second order phase transition happens during the radiation dominated era with a charged order parameter, spinodal…

天体物理学 · 物理学 2009-11-10 D. Boyanovsky , H. J. de Vega

We study the far-off-equilibrium dynamics of a Bjorken expanding non-conformal system within kinetic theory and hydrodynamics. We show that, in contrast to the conformal case, neither shear nor bulk viscous pressure relax quickly to a…

核理论 · 物理学 2022-08-02 Sunil Jaiswal , Subrata Pal , Chandrodoy Chattopadhyay , Lipei Du , Ulrich Heinz

The effects of the initial temperature in the out of equilibrium quantum field dynamics in the presence of an homogeneous external field are investigated. We consider an initial thermal state of temperature T for a constant external field…

高能物理 - 唯象学 · 物理学 2007-05-23 F. J. Cao , M. Feito

Thermalization of quark-gluon plasmas in heavy-ion collisions is a difficult theoretical problem. One theoretical goal has been to understand the physics of thermalization in the relatively simplifying limit of arbitrarily high energy…

高能物理 - 唯象学 · 物理学 2008-11-26 Peter Arnold , Guy D. Moore

We consider various sets of Vlasov-Fokker-Planck equations modeling the dynamics of charged particles in a plasma under the effect of a strong magnetic field. For each of them in a regime where the strength of the magnetic field is…

偏微分方程分析 · 数学 2020-06-30 Maxime Herda , Luis Miguel Rodrigues

Stabilizing plasma dynamics through externally applied electric and magnetic fields is a fundamental control problem. We study this question for a plasma evolving under a uniform external magnetic field. Although the governing dynamics are…

等离子体物理 · 物理学 2026-03-18 Peiyi Chen , Rogerio Jorge , Qin Li , Yukun Yue

The real-time dissociation of the heavy quarkonium in a strongly coupled boost-invariant non-Abelian plasma relaxing towards equilibrium is analyzed in a holographic framework. The effects driving the plasma out of equilibrium are described…

高能物理 - 唯象学 · 物理学 2017-09-08 L. Bellantuono , P. Colangelo , F. De Fazio , F. Giannuzzi , S. Nicotri

We discuss cosmological model with homogeneous and isotropic Yang-Mills field non-minimally coupled to gravity through an effective mass term. In this model conformal symmetry is violated which leads to possibility of inflationary…

高能物理 - 理论 · 物理学 2013-12-24 Evgeny A. Davydov , Dmitry V. Gal'tsov

We employ methods of gauge/string duality to analyze the Brownian motion and the concomitant Langevin equation of a heavy quark in a strongly coupled, thermal, anisotropic Yang-Mills plasma. We consider fluctuations both along and…

高能物理 - 理论 · 物理学 2014-04-23 Shankhadeep Chakrabortty , Somdeb Chakraborty , Najmul Haque

We study the plasma-vacuum interface problem in relativistic magnetohydrodynamics for the case when the plasma density does not go to zero continuously, but jumps. In the vacuum region we consider the Maxwell equations for electric and…

偏微分方程分析 · 数学 2011-11-21 Yuri Trakhinin

Using a holographic method, we further investigate the relaxation towards the hydrodynamic regime of a boost-invariant non-Abelian plasma taken out-of-equilibrium. In the dual description, the system is driven out-of-equilibrium by boundary…

高能物理 - 唯象学 · 物理学 2015-06-23 L. Bellantuono , P. Colangelo , F. De Fazio , F. Giannuzzi

We consider a three-dimensional kinetic model for a two species plasma consisting of electrons and ions confined by an external nonconstant magnetic field. Then we derive a kinetic-fluid model when the mass ratio $m_e/m_i$ tends to zero.…

偏微分方程分析 · 数学 2026-01-08 Maxime Herda

In a holographic approach, the evolution of a 4D strongly coupled non-Abelian plasma towards equilibrium can be studied investigating a 5D gravitational dual. The process driving the plasma out-of-equilibrium can be described by boundary…

高能物理 - 唯象学 · 物理学 2015-10-16 Loredana Bellantuono , Pietro Colangelo , Fulvia De Fazio , Floriana Giannuzzi

Prior attempts to construct the gravity dual of boost-invariant flow of N=4 supersymmetric Yang-Mills gauge theory plasma suffered from apparent curvature singularities in the late time expansion. This Letter shows how these problems can be…

高能物理 - 理论 · 物理学 2009-02-26 Michal P. Heller , R. Loganayagam , Michal Spalinski , Piotr Surowka , Samuel E. Vazquez

Continuous dual symmetry in electrodynamics, Yang-Mills theory and gravitation is investigated. Dual invariant which leads to badly nonlinear motion equations is chosen as a Lagrangian of the pure classical dual nonlinear electrodynamics.…

高能物理 - 理论 · 物理学 2007-05-23 A. L. Koshkarov

Motivated by the precedent study of Ordenes-Huanca and Velazquez [JSTAT \textbf{093303} (2016)], we address the study of a simple model of a pure non-neutral plasma: a system of identical non-relativistic charged particles confined under an…

统计力学 · 物理学 2020-07-07 B. F. I. Espinoza-Lozano , F. A. Calderón , L. Velazquez

We show that in a neutral magnetized plasma there exist microscopic oscillatory modes, with wavelengths of the order of magnitude of the mean interparticle distance, which become unstable when the electron density exceeds a limit…

等离子体物理 · 物理学 2010-06-24 M. Marino , M. Zuin , A. Carati , E. Martines , L. Galgani

The plasma of quarks and gluons created in ultrarelativistic heavy-ion collisions turns out to be paramagnetic. In the presence of a background magnetic field, this paramagnetism thus leads to a pressure anisotropy, similar to anisotropies…

核理论 · 物理学 2019-10-02 N. Sadooghi , S. M. A. Tabatabaee

Motivated by a scenario of magnetogenesis in which a homogeneous magnetic field is generated during inflation, we study the magnetohydrodynamic evolution of the primordial plasma motions for two kinds of initial conditions -- (i) a…

宇宙学与河外天体物理 · 物理学 2020-07-28 Axel Brandenburg , Ruth Durrer , Yiwen Huang , Tina Kahniashvili , Sayan Mandal , Shinji Mukohyama

We study far-from-equilibrium field theory dynamics using gauge/gravity duality applied to the Robinson-Trautman (RT) class of spacetimes and we present a number of new results. First, we assess the applicability of the hydrodynamic…

高能物理 - 理论 · 物理学 2017-05-08 Kostas Skenderis , Benjamin Withers