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相关论文: Dynamic density correlations in a baryon rich flui…

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We develop a (3+1)-dimensional hybrid evolution model for heavy-ion collisions with dynamical sources for the energy-momentum tensor and baryon current. During an initial pre-equilibrium stage based on UrQMD, the four-momenta and baryon…

核理论 · 物理学 2019-01-23 Lipei Du , Ulrich Heinz , Gojko Vujanovic

We propose that the transverse momentum ($p_T$) differential splitting of directed flow ($\Delta v_1$) between proton and anti-proton can serve as a sensitive observable to extract the baryon diffusion coefficient ($\kappa_B$) of the hot…

核理论 · 物理学 2023-05-18 Tribhuban Parida , Sandeep Chatterjee

Hybrid approaches based on relativistic hydrodynamics and transport theory have been successfully applied for many years for the dynamical description of heavy ion collisions at ultrarelativistic energies. In this work a new viscous hybrid…

核理论 · 物理学 2015-06-09 Iu. A. Karpenko , P. Huovinen , H. Petersen , M. Bleicher

We present an analysis of the static properties of heavy baryons at next-to-leading order in the perurbative expansion of QCD. We obtain analytical next-to-leading order three-loop results for the two-point correlators of baryonic currents…

高能物理 - 唯象学 · 物理学 2008-12-18 S. Groote , J. G. Körner , A. A. Pivovarov

Transport properties of a hard-sphere colloidal fluid are investigated by Brownian dynamics simulations. We implement a novel algorithm for the time-dependent velocity-autocorrelation function (VACF) essentially eliminating the noise of the…

软凝聚态物质 · 物理学 2020-04-23 Suvendu Mandal , Lukas Schrack , Hartmut Löwen , Matthias Sperl , Thomas Franosch

Simulations and diagnostics of high-energy-density plasmas and warm dense matter rely on models of material response properties, both static and dynamic (frequency-dependent). Here, we systematically investigate variations in dynamic…

We consider the effects of thermal noise on the Batchelor-Kraichnan theory of high Schmidt-number mixing in the viscous-dissipation range of turbulent flows. Using fluctuating hydrodynamics for a binary fluid mixture at low Mach numbers, we…

流体动力学 · 物理学 2022-06-03 Gregory Eyink , Amir Jafari

We apply a 3+1D viscous hydrodynamic + cascade model to the heavy ion collision reactions with $\sqrt{s_{NN}}=6.3\dots39$ GeV. To accommodate the model for a given collision energy range, the initial conditions for hydrodynamic phase are…

核理论 · 物理学 2014-09-08 Iu. Karpenko , M. Bleicher , P. Huovinen , H. Petersen

Gravity-driven convection of fluid at parameters near its thermodynamic critical point inside a porous layer heated from below (Rayleigh-Darcy convection) is studied. The fluid having the temperature slightly above the critical one is…

流体动力学 · 物理学 2010-01-26 E. B. Soboleva

For the discovery of the QCD critical point it is crucial to develop dynamical models of the fluctuations of the net-baryon number that can be embedded in simulations of heavy-ion collisions. In this proceeding, we study the dynamical…

It is shown that intermittency, a self-similar correlation with respect to the size of the phase space volume, is sensitive to critical density fluctuations of baryon numbers in a system belonging to the three-dimensional (3D) Ising…

核理论 · 物理学 2020-01-06 Jin Wu , Yufu Lin , Yuanfang Wu , Zhiming Li

We analyse the process of convective mixing in two-dimensional, homogeneous and isotropic porous media with dispersion. We considered a Rayleigh-Taylor instability in which the presence of a solute produces density differences driving the…

流体动力学 · 物理学 2025-10-08 Marco De Paoli , Guru Sreevanshu Yerragolam , Roberto Verzicco , Detlef Lohse

Heavy-ion collisions at center-of-mass energies between 1 and 100 GeV/nucleon are essential to understand the phase diagram of QCD and search for its critical point. At these energies the net baryon density of the system can be high, and…

核理论 · 物理学 2020-03-26 Lipei Du , Ulrich Heinz

We study time-dependent perturbations to a family of five-dimensional black hole spacetimes constructed as a holographic model of the QCD phase diagram. We use the results to calculate two transport coefficients, the bulk viscosity and…

高能物理 - 理论 · 物理学 2013-05-29 Oliver DeWolfe , Steven S. Gubser , Christopher Rosen

Motivated by the fact that QCD critical point (CP) belongs to the same universality class as the liquid-gas transition, the dynamical density fluctuations around the CP is analyzed using relativistic fluid dynamics for a viscous fluid. It…

核理论 · 物理学 2014-11-20 Teiji Kunihiro , Yuki Minami

The dynamic structure factor of a normal Fermi gas is investigated by using the moment method for the Boltzmann equation. We determine the spectral function at finite temperatures over the full range of crossover from the collisionless…

量子气体 · 物理学 2010-10-05 Shohei Watabe , Tetsuro Nikuni

A bottom-up Einstein-Maxwell-Dilaton holographic model is used to compute, for the first time, the behavior of several transport coefficients of the hot and baryon-rich strongly coupled quark-gluon plasma at the critical point and also…

Recently, a systematic experiment measuring critical anomaly of viscosity of polymer solutions has been reported by H. Tanaka and his co-workers (Phys.Rev.E, 65, 021802, (2002)). According to their experiments, the dynamic critical exponent…

统计力学 · 物理学 2009-11-07 Akira Furukawa

Computing analytically the $n$-point density correlations in systems of interacting particles is a long-standing problem of statistical physics, with a broad range of applications, from the interpretation of scattering experiments in simple…

统计力学 · 物理学 2025-07-01 Louison Le Bon , Antoine Carof , Pierre Illien

In this contribution we study the effects of three transport coefficients of dissipative hydrodynamics on thermal dilepton anisotropic flow observables. The first two transport coefficients investigated influence the overall size and growth…