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相关论文: Viscosity of the magnetized strongly coupled one-c…

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The friction force on a test particle traveling through a plasma that is both strongly coupled and strongly magnetized is studied using molecular dynamics simulations. In addition to the usual stopping power component aligned antiparallel…

等离子体物理 · 物理学 2021-06-16 David J. Bernstein , Scott D. Baalrud

Mean force kinetic theory is used to evaluate the electrical conductivity, thermal conductivity, electrothermal coefficient, thermoelectric coefficient, and shear viscosity of a two-component (ion-electron) plasma. Results are compared with…

等离子体物理 · 物理学 2025-11-14 Jarett LeVan , Scott D. Baalrud

In this paper we discuss the results of some Molecular Dynamics simulations of a magnetized One Component Plasma, targeted to estimate the diffusion coefficient $D_{\perp}$ in the plane orthogonal to the magnetic field lines. We find that…

等离子体物理 · 物理学 2022-10-21 Lorenzo Valvo , Andrea Carati

The shear viscosity of a gluon gas is calculated using the Green-Kubo relation. Time correlations of the energy-momentum tensor in thermal equilibrium are extracted from microscopic simulations using a parton cascade solving various…

高能物理 - 唯象学 · 物理学 2013-05-29 C. Wesp , A. El , F. Reining , Z. Xu , I. Bouras , C. Greiner

Plasmas that are strongly magnetized in the sense that the gyrofrequency exceeds the plasma frequency exhibit novel transport properties that are not well understood. As a representative example, we compute the friction force acting on a…

等离子体物理 · 物理学 2021-08-11 Louis Jose , Scott D. Baalrud

Equilibrium molecular dynamics simulations are used to calculate the thermal conductivity of the one component plasma (OCP) via the Green-Kubo formalism over a broad range of Coulomb coupling strength, $0.1\le\Gamma\le180$. These…

等离子体物理 · 物理学 2019-10-30 Brett Scheiner , Scott D. Baalrud

Shear viscosity of the gluon plasma in SU(3) YM theory is calculated nonperturbatively, within the stochastic vacuum model. The result for the ratio of the shear viscosity to the entropy density, proportional to the squared chromo-magnetic…

高能物理 - 唯象学 · 物理学 2009-05-21 Dmitri Antonov

The influence of viscosity gradient (due to shear flow) on low frequency collective modes in strongly coupled dusty plasma is analyzed. It is shown that for a well known viscoelastic plasma model, the velocity shear dependent viscosity…

等离子体物理 · 物理学 2015-06-17 D. Banerjee , M. S. Janaki , N. Chakrabarti , M. Chaudhuri

Elliptic flow measurements at RHIC suggest that quark gluon plasma flows with very little viscosity compared to weak coupling expectations, challenging theorists to explain why this fluid is so nearly ``perfect''. It is therefore vital to…

核理论 · 物理学 2009-11-11 Sean Gavin , Mohamed Abdel-Aziz

Plasmas in strong magnetic fields have been mainly studied in two distinct limiting cases--that of weak and strong nonideality with very different physical properties. While the former is well described by the familiar theory of Braginskii,…

等离子体物理 · 物理学 2021-12-23 Hanno Kählert , Michael Bonitz

Recent estimates for the electromagnetic fields produced in the early stages of non-central ultra-relativistic heavy ion collisions indicate the presence of magnetic fields $B\sim \mathcal{O}(0.1-15\,m_\pi^2)$, where $m_\pi$ is the pion…

高能物理 - 理论 · 物理学 2014-09-17 R. Critelli , S. I. Finazzo , M. Zaniboni , J. Noronha

We compute the shear viscosity of two-flavor QCD plasma in an external magnetic field in perturbative QCD at leading log order, assuming that the magnetic field is weak or soft: $eB\sim g^4\log(1/g)T^2$. We show that the shear viscosity…

高能物理 - 唯象学 · 物理学 2018-04-04 Shiyong Li , Ho-Ung Yee

This paper investigates the density expansion of the thermodynamic properties of a two component plasma under the influence of a weak constant uniform magnetic field. We start with the fugacity expansion for the Helmholtz free energy. The…

等离子体物理 · 物理学 2009-10-31 M. Steinberg , W. Ebeling , J. Ortner

The shear viscosity of QED plasma at finite temperature and density is calculated by solving Boltzmann equation with variational approach. The result shows the small chemical potential enhances the viscosity in leading-log order by adding a…

高能物理 - 理论 · 物理学 2011-09-13 Hui Liu , Defu Hou , Jiarong Li

The transport coefficient of shear viscosity is studied for a hadron matter through microscopic transport model, the Ultra--relativistic Quantum Molecular Dynamics (UrQMD), using the Green--Kubo formulas. Molecular--dynamical simulations…

核理论 · 物理学 2009-11-10 Azwinndini Muronga

The gluon polarization tensor for the quark-gluon plasma with shear viscosity is derived with the viscous chromohydrodynamics. The longitudinal and transverse dielectric functions are evaluated from the gluon polarization tensor, through…

高能物理 - 唯象学 · 物理学 2014-05-20 Bing-Feng Jiang , Defu Hou , Jia-Rong Li

We determine the shear viscosity of a hot and dense Yukawa-Fermi gas, using the standard Green-Kubo relation, according to which the shear viscosity is given by the retarded correlator of the traceless part of viscous energy-momentum…

高能物理 - 唯象学 · 物理学 2016-01-20 N. Sadooghi , F. Taghinavaz

Transport properties, such as viscosity and thermal conduction, of the hot intergalactic plasma in clusters of galaxies, are largely unknown. While for laboratory plasmas these characteristics are derived from the gas density and…

高能天体物理现象 · 物理学 2019-06-18 I. Zhuravleva , E. Churazov , A. A. Schekochihin , S. W. Allen , A. Vikhlinin , N. Werner

The shear viscosity of quark gluon plasma is customarily estimated in the literature using kinetic theory, which, however, is well known to break down for dense interacting systems. Here we propose an alternative theoretical approach based…

高能物理 - 唯象学 · 物理学 2024-03-01 Alessio Zaccone

The viscoelasticity of a two-dimensional liquid strongly-coupled dusty plasma is studied experimentally, without macroscopic shear. Positions and velocities of the dust particles, measured by video microscopy, are used as the inputs to the…

等离子体物理 · 物理学 2015-06-05 Yan Feng , J. Goree , Bin Liu