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We consider non-equilibrium evolution of non-Gaussian fluctuations within relativistic hydrodynamics relevant for the QCD critical point search in heavy-ion collision experiments. We rely on the hierarchy of relaxation time scales, which…

高能物理 - 理论 · 物理学 2023-09-27 Xin An , Gokce Basar , Mikhail Stephanov , Ho-Ung Yee

In the limit of infinite yield time for stresses, the hydrodynamic equations for viscoelastic, Non-Newtonian liquids such as polymer melts must reduce to that for solids. This piece of information suffices to uniquely determine the…

软凝聚态物质 · 物理学 2009-10-31 Hubert Temmen , Harald Pleiner , Mario Liu , Helmut R. Brand

We present a generating functional which describes the equilibrium thermodynamic response of a relativistic system to external sources. A variational principle gives rise to constraints on the response parameters of relativistic…

高能物理 - 理论 · 物理学 2013-05-30 Kristan Jensen , Matthias Kaminski , Pavel Kovtun , Rene Meyer , Adam Ritz , Amos Yarom

The linear stability of the homogeneous equilibrium of non-relativistic fluids with mass flux and special relativistic fluids with the absolute value of the energy vector as internal energy is investigated. It is proved that the equilibrium…

核理论 · 物理学 2011-07-14 P. Ván

We study uncharged Rindler hydrodynamics at second order in the derivative expansion. The equation of state of the theory is given by a vanishing equilibrium energy density. We derive relations among the transport coefficients by employing…

高能物理 - 理论 · 物理学 2015-06-15 Adiel Meyer , Yaron Oz

While conventional hydrodynamics incorporating dissipative effects is hard to derive from an action principle, it is nevertheless possible to construct classical actions when the dissipative terms are switched off. In this note we undertake…

高能物理 - 理论 · 物理学 2014-03-04 Jyotirmoy Bhattacharya , Sayantani Bhattacharyya , Mukund Rangamani

When an ensemble of particles interact hydrodynamically, they generically display large-scale transient structures such as swirls in sedimenting particles [1], or colloidal strings in sheared suspensions [2]. Understanding these…

软凝聚态物质 · 物理学 2013-01-24 Nicolas Desreumaux , Jean-Baptiste Caussin , Raphael Jeanneret , Eric Lauga , Denis Bartolo

We study transport properties of a parity-odd, non-relativistic charged fluid in presence of background electric and magnetic fields. To obtain stress tensor and charged current for the non-relativistic system we start with the most generic…

高能物理 - 理论 · 物理学 2015-02-03 Nabamita Banerjee , Suvankar Dutta , Akash Jain , Dibakar Roychowdhury

Relativistic dissipative fluid dynamics finds widespread applications in high-energy nuclear physics and astrophysics. However, formulating a causal and stable theory of relativistic dissipative fluid dynamics is far from trivial; efforts…

We introduce a new framework of highly-anisotropic hydrodynamics that includes dissipation effects. Dissipation is defined by the form of the entropy source that depends on the pressure anisotropy and vanishes for the isotropic fluid. With…

核理论 · 物理学 2011-04-04 Wojciech Florkowski , Radoslaw Ryblewski

Starting from the basic prescriptions of the Tsallis' nonextensive thermostatistics, i.e. generalized entropy and normalized q-expectation values, we study the relativistic nonextensive thermodynamics and derive a Boltzmann transport…

统计力学 · 物理学 2015-06-24 A. Lavagno

We investigate divergence-type theories (DTT) describing the dissipative interaction between a field and a fluid. We look for theories which, under equilibrium conditions, reduce to the theory of a Klein-Gordon scalar field and a perfect…

高能物理 - 唯象学 · 物理学 2009-10-31 Esteban Calzetta , Marc Thibeault

This paper studies the diffusion approximation, non-equilibrium model of radiation hydrodynamics derived by Buet and Despr\'es (J. Quant. Spectrosc. Radiat. Transf. 85 (2004), no. 3-4, 385-418). The latter describes a non-relativistic…

偏微分方程分析 · 数学 2025-10-30 Corrado Lattanzio , Ramón G. Plaza , José Manuel Valdovinos

We study relativistic hydrodynamics in the presence of a non vanishing spin chemical potential. Using a variety of techniques we carry out an exhaustive analysis, and identify the constitutive relations for the stress tensor and spin…

高能物理 - 理论 · 物理学 2021-09-01 Domingo Gallegos , Umut Gursoy , Amos Yarom

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

A non-extensive (3+1)-dimensional hydrodynamic model for multi-particle production processes, NEX-CLVisc, is developed in the framework of CLVisc where the viscous corrections are turned off. It assumes that the non-extensive effects…

核理论 · 物理学 2025-02-10 Jia-Hao Shi , Zhi-Ying Qin , Jin-Peng Zhang , Jian Cao , Ze-Fang Jiang , Wen-Chao Zhang , Hua Zheng

Experimental particle spectra can be successfully described by power-law tailed energy distributions characteristic to canonical equilibrium distributions associated to R\'enyi's or Tsallis' entropy formula - over a wide range of energies,…

核理论 · 物理学 2013-06-27 T. S. Biró , E. Molnár

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

Looking for the underlying hydrodynamic mechanisms determining the elliptic flow we show that for an expanding relativistic perfect fluid the transverse flow may derive from a solvable hydrodynamic potential, if the entropy is transversally…

核理论 · 物理学 2009-09-24 Robi Peschanski , Emmanuel N. Saridakis

We use a simple model consisting of energy-momentum tensor conservation and a Maxwell-Cattaneo equation for its viscous part to study nonlinear phenomena in a real relativistic fluid. We focus on new types of behavior without…

广义相对论与量子宇宙学 · 物理学 2021-03-31 Esteban Calzetta