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In this paper we study global existence of weak solutions for the Quantum Hydrodynamics System in 2-D in the space of energy. We do not require any additional regularity and/or smallness assumptions on the initial data. Our approach…

偏微分方程分析 · 数学 2015-05-20 Paolo Antonelli , Pierangelo Marcati

A detailed study is carried out for the relativistic theory of viscoelasticity which was recently constructed on the basis of Onsager's linear nonequilibrium thermodynamics. After rederiving the theory using a local argument with the…

统计力学 · 物理学 2015-03-19 Masafumi Fukuma , Yuho Sakatani

To further confirm the causality and stability of a second-order hyperbolic system of partial differential equations that models the relativistic dynamics of barotropic fluids with viscosity and heat conduction (H. Freist\"uhler and B.…

流体动力学 · 物理学 2021-05-19 Heinrich Freistühler , Moritz Reintjes , Blake Temple

The causality and stability of a relativistic hydrodynamic theory is shown to require a consensus between, either (i) newer degrees of freedom apart from the fundamental fluid fields, or (ii) a general hydrodynamic frame other than the…

核理论 · 物理学 2025-08-25 Sukanya Mitra

We derive the second order hydrodynamic equations for the relativistic system of multi-components with multiple conserved currents by generalizing the Israel-Stewart theory and Grad's moment method. We find that, in addition to the…

核理论 · 物理学 2011-02-25 Akihiko Monnai , Tetsufumi Hirano

Starting with a brief introduction into the basics of relativistic fluid dynamics, I discuss our current knowledge of a relativistic theory of fluid dynamics in the presence of (mostly shear) viscosity. Derivations based on the generalized…

高能物理 - 唯象学 · 物理学 2010-03-02 Paul Romatschke

We derive relativistic hydrodynamic equations with a dynamical spin degree of freedom on the basis of an entropy-current analysis. The first and second laws of local thermodynamics constrain possible structures of the constitutive relations…

高能物理 - 理论 · 物理学 2019-07-03 Koichi Hattori , Masaru Hongo , Xu-Guang Huang , Mamoru Matsuo , Hidetoshi Taya

We formulate a relativistic hydrodynamic theory for fluids with spin and intrinsic dilation charges. Using an entropy-current analysis, we derive constitutive relations featuring a bulk viscosity and a dilation conductivity governing the…

高能物理 - 理论 · 物理学 2026-03-19 Zhong-Hua Zhang , Xi-Hu Lv , Xu-Guang Huang

We derive the relativistic non-resistive, viscous second-order magnetohydrodynamic equations for the dissipative quantities using the relaxation time approximation. The Boltzmann equation is solved for a system of particles and…

核理论 · 物理学 2021-04-07 Ankit Kumar Panda , Ashutosh Dash , Rajesh Biswas , Victor Roy

We study first and second order theories of relativistic diffusion coupled to hydrodynamics under the approximation, valid at mid-rapidity in the RHIC and LHC, that conserved number densities are much smaller than the entropy density. We…

高能物理 - 唯象学 · 物理学 2009-11-19 Rajeev S. Bhalerao , Sourendu Gupta

In the context of the M\"{u}ller-Israel-Stewart second order phenomenological theory for dissipative fluids, we analyze the effects of thermal conduction and viscosity in a relativistic fluid, just after its departure from hydrostatic…

广义相对论与量子宇宙学 · 物理学 2008-11-26 L. Herrera , J. Martinez

In the context of incompressible fluids, the observation that turbulent singular structures fail to be space filling is known as ``intermittency'' and it has strong experimental foundations. Consequently, as first pointed out by Landau,…

偏微分方程分析 · 数学 2023-12-19 Luigi De Rosa , Philip Isett

Second-order relativistic hydrodynamics is surprisingly predictive, even in the presence of large gradients. The hydrodynamic expansion from the method of moments does not require a gradient expansion, but it is intrinsically bound to the…

核理论 · 物理学 2020-03-23 Leonardo Tinti

The flow of the relativistic imperfect fluid in two dimensions is discussed. We calculate the symmetry group of the energy-momentum tensor conservation equation in the ultrarelativistic limit. Group-invariant solutions for the…

流体动力学 · 物理学 2008-11-06 C Alexa , D Vrinceanu

We present a new solution of relativistic hydrodynamics in 1+3 dimensions which depends on both the transverse coordinate and rapidity. At early times the flow expands dominantly longitudinally in a non-boost-invariant manner, and at late…

高能物理 - 唯象学 · 物理学 2016-02-03 Yoshitaka Hatta , Bo-Wen Xiao , Di-Lun Yang

In recent years the equations of relativistic first-order viscous hydrodynamics, that is, the relativistic version of Navier-Stokes, have been shown to be well posed and causal under appropriate field redefinitions, also known as…

高能物理 - 理论 · 物理学 2023-12-29 Yago Bea , Pau Figueras

The Landau-Lifshitz fluctuating hydrodynamics is used to study the statistical properties of the linearized Kolmogorov flow. The relative simplicity of this flow allows a detailed analysis of the fluctuation spectrum from near equilibrium…

凝聚态物理 · 物理学 2009-11-07 I. Bena , M. Malek Mansour , F. Baras

When time reversal is broken the viscosity tensor can have a non vanishing odd part. In two dimensions, and only then, such odd viscosity is compatible with isotropy. Elementary and basic features of odd viscosity are examined by…

流体动力学 · 物理学 2007-05-23 J. E. Avron

Through the Ginzburg-Landau and the Navier-Stokes equations, we study turbulence phenomena for viscous incompressible and compressible fluids by a second order phase transition. For this model, the velocity is defined by the sum of…

流体动力学 · 物理学 2019-12-30 Mauro Fabrizio

The second law of thermodynamics is discussed and reformulated from a quantum information theoretic perspective for open quantum systems using relative entropy. Specifically, the relative entropy of a quantum state with respect to…

量子物理 · 物理学 2020-11-11 Neil Dowling , Stefan Floerchinger , Tobias Haas