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相关论文: On the mode structure of imperfect fluids

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We prove that Einstein's equations coupled to equations of Israel-Stewart-type, describing the dynamics of a relativistic fluid with bulk viscosity and nonzero baryon charge (without shear viscosity or baryon diffusion) dynamically coupled…

广义相对论与量子宇宙学 · 物理学 2019-07-03 Fabio S. Bemfica , Marcelo M. Disconzi , Jorge Noronha

This Perspective article provides an overview of some of our analytical approaches to the computation of the structural and thermodynamic properties of single-component and multicomponent hard-sphere fluids. For the structural properties,…

软凝聚态物质 · 物理学 2020-09-28 Andrés Santos , Santos B. Yuste , Mariano López de Haro

We present a new prescription for analysing cosmological perturbations in a more-general class of scalar-field dark-energy models where the energy-momentum tensor has an imperfect-fluid form. This class includes Brans-Dicke models, f(R)…

宇宙学与河外天体物理 · 物理学 2013-01-03 Ignacy Sawicki , Ippocratis D. Saltas , Luca Amendola , Martin Kunz

This key-issues review is a plea for a new focus on simpler and more realistic models of glass-forming fluids. It seems to me that we have too often been led astray by sophisticated mathematical models that beautifully capture some of the…

统计力学 · 物理学 2015-06-17 J. S. Langer

We develop an approach to liquid thermodynamics based on collective modes. We perform extensive molecular dynamics simulations of noble, molecular and metallic liquids and provide the direct evidence that liquid energy and specific heat are…

软凝聚态物质 · 物理学 2017-03-08 L. Wang , C. Yang , M. T. Dove , Yu. D. Fomin , V. V. Brazhkin , K. Trachenko

Relativistic hydrodynamics successfully provides an effective field theory description for the low energy regime of many out-of-equilibrium systems. On the other hand, in this paper we proof that any stand-alone hydrodynamic EFT is…

高能物理 - 理论 · 物理学 2026-05-21 Robbe Brants

We discuss the general link between mode-coupling like equations (which serve as the basis of some recent theories of supercooled liquids) and the dynamical equations governing mean-field spin-glass models, or the dynamics of a particle in…

凝聚态物理 · 物理学 2015-06-25 Jean-Philippe Bouchaud , Leticia Cugliandolo , Jorge Kurchan , Marc Mézard

Extended theories are widely used in the literature to describe relativistic fluids. The motivation for this is mostly due to the causality issues allegedly present in the first order in the gradients theories. However, the decay of…

广义相对论与量子宇宙学 · 物理学 2015-06-11 A. L. Garcia-Perciante , H. Mondragon-Suarez , D. Brun-Battistini , A. Sandoval-Villalbazo

We propose a new theory of second-order viscous relativistic hydrodynamics which does not impose any frame conditions on the choice of the hydrodynamic variables. It differs from Mueller-Israel-Stewart theory by including additional…

核理论 · 物理学 2022-07-26 Jorge Noronha , Michał Spaliński , Enrico Speranza

We study the modulational instability of periodic traveling waves for a class of Hamiltonian systems in one spatial dimension. We examine how the Jordan block structure of the associated linearized operator bifurcates for small values of…

偏微分方程分析 · 数学 2013-06-28 Jared C. Bronski , Vera Mikyoung Hur

We discuss the dynamic behavior of a tagged particle close to a classical localization transition in the framework of the mode-coupling theory of the glass transition. Asymptotic results are derived for the order parameter as well as the…

无序系统与神经网络 · 物理学 2011-08-11 S. K. Schnyder , F. Höfling , T. Franosch , Th. Voigtmann

The second order perturbations in Friedmann-Robertson-Walker universe filled with a perfect fluid are completely formulated in the gauge invariant manner without any gauge fixing. All components of the Einstein equations are derived…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Kouji Nakamura

We study universal spatial features of certain non-equilibrium steady states corresponding to flows of strongly correlated fluids over obstacles. This allows us to predict universal spatial features of far-from-equilibrium systems, which in…

高能物理 - 理论 · 物理学 2018-10-31 Igor Novak , Julian Sonner , Benjamin Withers

Intermittency is an essential property of astrophysical fluids, which demonstrate an extended inertial range. As intermittency violates self-similarity of motions, it gets impossible to naively extrapolate the properties of fluid obtained…

天体物理学 · 物理学 2011-05-10 A. Lazarian

Equilibrium statistical mechanics is intended to link the microscopic dynamics of particles to the thermodynamic laws for macroscopic quantities. However, the modern statistical theory is faced with significant difficulties, as applied to…

统计力学 · 物理学 2016-03-15 A. G. Godizov , A. A. Godizov

Thermodynamic and structural properties of the tangent diatomic fluid are studied in the framework provided by the Reference Interaction Site Model (RISM) theory, coupled with a Modified Hypernetted Chain closure. The enforcement of the…

统计力学 · 物理学 2009-11-13 G. Munao' , D. Costa , C. Caccamo

I review the causal relativistic thermodynamics developed by Israel and Stewart, and discuss some applications in cosmology and astrophysics. The lectures begin with an overview of relativistic fluid dynamics (in a covariant formalism) and…

天体物理学 · 物理学 2007-05-23 Roy Maartens

The main ideas, technical concepts and perspectives for a mode resolved description of the hydrodynamical regime of relativistic heavy ion collisions are discussed. A background-fluctuation splitting and a Bessel-Fourier expansion for the…

核理论 · 物理学 2014-08-28 Stefan Floerchinger

A hydrodynamic description for inelastic Maxwell mixtures driven by a stochastic bath with friction is derived. Contrary to previous works where constitutive relations for the fluxes were restricted to states near the homogeneous steady…

统计力学 · 物理学 2020-06-17 Nagi Khalil , Vicente Garzó

Consistent theories of hydrodynamics necessarily include nonhydrodynamic modes, which can be viewed as a regulator necessary to ensure causality. Under many circumstances the choice of regulator is not relevant, but this is not always the…

核理论 · 物理学 2017-06-28 Michal Spalinski