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We develop a causal hydrodynamic model that provides an effective macroscopic description of the field-theoretic dynamics during the early stages of reheating. The inflaton condensate is treated as a homogeneous background coupled to a…

高能物理 - 唯象学 · 物理学 2026-01-14 Juan Pablo Elía , Lucas Cantarutti , Nahuel Mirón-Granese , Esteban Calzetta

We review recent interest in the relativistic Riemann problem as a method for generating a non-equilibrium steady state. In the version of the problem under con- sideration, the initial conditions consist of a planar interface between two…

高能物理 - 理论 · 物理学 2016-11-23 Michael Spillane , Christopher P. Herzog

The Hamiltonian formulation of superfluids based on noncanonical Poisson brackets is studied in detail. The assumption that the momentum density is proportional to the flow of the conserved energy is shown to lead to the covariant…

高能物理 - 唯象学 · 物理学 2008-11-26 Manuel A. Valle

We review the key steps of the relativistic fluid dynamics formalism with spin degrees of freedom initiated recently. We obtain equations of motion of the expansion of the system from the underlying definitions of quantum kinetic theory for…

核理论 · 物理学 2021-04-06 Rajeev Singh

It is shown that the so-called generic instabilities that appear in the framework of relativistic linear irreversible thermodynamics, describing the fluctuations of a simple fluid close to equilibrium, arise due to the coupling of heat with…

广义相对论与量子宇宙学 · 物理学 2009-07-31 A. L. Garcia-Perciante , L. S. Garcia-Colin , A. Sandoval-Villalbazo

In this letter, we investigate how field redefinition influences the spectrum of linearized perturbations in relativistic fluid dynamics. We show that the hydrodynamic modes do not get affected under local field redefinition, whereas the…

核理论 · 物理学 2024-11-06 Sayantani Bhattacharyya , Sukanya Mitra , Shuvayu Roy , Rajeev Singh

The "unreasonable effectiveness" of relativistic fluid dynamics in describing high energy heavy-ion and even proton-proton collisions are demonstrated and discussed. Several recent ideas of optimizing relativistic fluid dynamics for the…

核理论 · 物理学 2019-10-02 Ulrich W. Heinz , J. Scott Moreland

Classical relativistic field theory is applied to perfect and magneto-hydrodynamic flows. The fields for Hamilton's principle are shown to be the Lagrangian coordinates of the fluid elements, which are potentials for the matter current…

综合物理 · 物理学 2007-05-23 Sylvan A. Jacques

The structure of novel hydrodynamic model of plasmas with the relativistic temperatures consisted of four equations for the material fields is presented for the regime of anisotropic pressure and other tensors describing the thermal…

等离子体物理 · 物理学 2021-10-29 Pavel A. Andreev

Observations of both gamma-ray burst sources and certain classes of active galaxy indicate the presence of relativistic shock waves and require the production of high energy particles to explain their emission. In this paper we review the…

天体物理学 · 物理学 2009-10-31 J. G. Kirk , P. Duffy

A model of two-component relativistic fluid is considered, and the thermal nature of coupling between the fluid constituents is outlined. This thermal coupling is responsible for non-ideality of the fluid composite where the components are…

核理论 · 物理学 2011-08-16 Ernst Trojan , George V. Vlasov

We discuss a relativistic model for heat conduction, building on a convective variational approach to multi-fluid systems where the entropy is treated as a distinct dynamical entity. We demonstrate how this approach leads to a relativistic…

广义相对论与量子宇宙学 · 物理学 2011-02-11 C. S. Lopez-Monsalvo , N. Andersson

The recently proposed connection between the Lorentz invariance of stability and the speed of signal propagation has been tested for a first-order relativistic dissipative hydrodynamic theory. The fact that the stability situation in…

核理论 · 物理学 2023-02-15 Rajesh Biswas , Sukanya Mitra , Victor Roy

We consider a stress-energy tensor describing a pure radiation viscous fluid with conformal symmetry introduced in arXiv:1708.06255. We show that the corresponding equations of motions are causal in Minkowski background and also when…

偏微分方程分析 · 数学 2019-01-31 Marcelo M. Disconzi

The shear viscosity is a fundamental transport property of matter. Here we derive a general theory of the viscosity of gases based on the relativistic Langevin equation (deduced from a relativistic Lagrangian) and nonaffine linear response…

高能物理 - 唯象学 · 物理学 2024-11-08 Alessio Zaccone

Relativistic effects in the thermodynamical properties of interacting particle systems are investigated within the framework of the relativistic direct interaction theory in various forms of dynamics. In the front form of relativistic…

高能物理 - 理论 · 物理学 2007-05-23 V. Tretyak

General formulation of hydrodynamics describing transversally thermalized matter created at the early stages of ultra-relativistic heavy-ion collisions is presented. Similarities and differences with the standard three-dimensionally…

核理论 · 物理学 2008-11-26 Radoslaw Ryblewski , Wojciech Florkowski

A brief overview of the current status of hydrodynamic concepts applied to ultra relativistic heavy-ion collisions is presented. Special emphasis is placed on future prospects for extracting the thermodynamic properties and the bulk…

核理论 · 物理学 2009-11-10 Peter F. Kolb

We review recent progress in applying relativistic hydrodynamics to the modeling of heavy-ion collisions at RHIC and LHC, with emphasis on anisotropic flow and flow fluctuations.

核理论 · 物理学 2013-05-15 Jean-Yves Ollitrault , Fernando G. Gardim

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