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相关论文: Hydrodynamical noise and Gubser flow

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Two-particle pseudorapidity correlations of hadrons produced in Pb+Pb collisions at 2.76 TeV at the CERN Large Hadron Collider are analyzed in the framework of a model based on viscous 3+1-dimensional hydrodynamics with the Glauber initial…

核理论 · 物理学 2015-12-02 Piotr Bozek , Wojciech Broniowski , Adam Olszewski

Event-by-event fluctuations caused by quantum mechanical fluctuations in the wave function of colliding nuclei in ultrarelativistic heavy ion collisions were recently shown to be necessary for the simultaneous description of $R_{AA}$ as…

Relativistic hydrodynamics has been extensively applied to high energy heavy-ion collisions. We review hydrodynamic calculations for Au+Au collisions at RHIC energies and provide a comprehensive comparison between the model and experimental…

核理论 · 物理学 2007-05-23 Peter F. Kolb , Ulrich Heinz

The origin of hydrodynamical instability and turbulence in the Keplerian accretion disk is a long-standing puzzle. The flow therein is linearly stable. Here we explore the evolution of perturbation in this flow in the presence of an…

高能天体物理现象 · 物理学 2021-11-18 Subham Ghosh , Banibrata Mukhopadhyay

Origin of hydrodynamical instability and turbulence in the Keplerian accretion disc as well as similar laboratory shear flows, e.g. plane Couette flow, is a long standing puzzle. These flows are linearly stable. Here we explore the…

高能天体物理现象 · 物理学 2020-07-01 Subham Ghosh , Banibrata Mukhopadhyay

We review the signatures for the soft collective dynamics in highest-multiplicity ultrarelativistic p-Pb collisions and show that the effects are well described in a three-stage model, consisting of the event-by-event Glauber initial…

核理论 · 物理学 2013-12-02 Wojciech Broniowski , Piotr Bozek

The emergent fluctuating hydrodynamics of a viscoelastic fluid modeled by the multiparticle collision dynamics (MPC) approach is studied. The fluid is composed of flexible, Gaussian phantom polymers, which interact by local…

软凝聚态物质 · 物理学 2020-01-29 David Toneian , Gerhard Kahl , Gerhard Gompper , Roland G. Winkler

The equations of continuum hydrodynamics can be derived from the Boltzmann equation, which describes rarefied gas dynamics at the kinetic level, by means of the Chapman-Enskog expansion. This expansion assumes a small Knudsen number, and as…

统计力学 · 物理学 2011-10-07 Carlos Escudero

Gubser flow provides an analytic model for describing the spacetime dynamics of the quark-gluon plasma produced in heavy-ion collisions. Along with boost and rotation invariance along the beam axis, the model assumes invariance under a…

高能物理 - 理论 · 物理学 2024-03-06 Arjun Bagchi , Kedar S. Kolekar , Taniya Mandal , Ashish Shukla

To study the microscopic structure of quark-gluon plasma, data from hadronic collisions must be confronted with models that go beyond fluid dynamics. Here, we study a simple kinetic theory model that encompasses fluid dynamics but contains…

高能物理 - 唯象学 · 物理学 2020-01-08 Aleksi Kurkela , Urs Achim Wiedemann , Bin Wu

Anisotropic azimuthal correlations are used to probe the properties and the evolution of the system created in heavy-ion collisions. Two-particle azimuthal correlations were used in the searches of $p_{\rm T}$ dependent fluctuations of flow…

核实验 · 物理学 2015-03-26 You Zhou

Via hydrodynamics preserving molecular dynamics simulations we study growth phenomena in a phase separating symmetric binary mixture model. We quench high-temperature homogeneous configurations to state points inside the miscibility gap,…

软凝聚态物质 · 物理学 2021-07-23 Koyel Das , Subir K. Das

We perform a principal component analysis (PCA) of $v_3(p_T)$ in event-by-event hydrodynamic simulations of Pb+Pb collisions at the Large Hadron Collider (LHC). The PCA procedure identifies two dominant contributions to the two-particle…

核理论 · 物理学 2015-11-03 Aleksas Mazeliauskas , Derek Teaney

Anisotropic hydrodynamics is a reorganization of the relativistic hydrodynamics expansion, with the leading order already containing substantial momentum-space anisotropies. The latter are a cause of concern in the traditional viscous…

高能物理 - 唯象学 · 物理学 2015-06-11 Leonardo Tinti

Higher Fourier harmonics of anisotropic flow ($v_4$ and beyond) get large contributions induced by elliptic and triangular flow through nonlinear response. We present a general framework of nonlinear hydrodynamic response which encompasses…

核理论 · 物理学 2018-05-16 Giuliano Giacalone , Li Yan , Jean-Yves Ollitrault

Hydrodynamical description of the "Little Bang" in heavy ion collisions is surprisingly successful, mostly due to the very small viscosity of the Quark-Gluon plasma. In this paper we systematically study the propagation of small…

核理论 · 物理学 2013-05-29 Pilar Staig , Edward Shuryak

Hydrodynamical description of the "Little Bang" in heavy ion collisions is surprisingly successful: here we systematically study propagation of small perturbations %, also treated hydrodynamically. Using analytic description of the…

高能物理 - 唯象学 · 物理学 2015-05-28 Pilar Staig , Edward Shuryak

Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective flow. Fourier…

高能物理 - 实验 · 物理学 2020-07-03 CMS Collaboration

Exploiting the first measurements of the same ion species in O+O collisons at RHIC and LHC, we propose an experimentally accessible observable to distinguish whether collective behaviour builds up through a hydrodynamic expansion of a…

高能物理 - 唯象学 · 物理学 2025-03-18 Sören Schlichting , Clemens Werthmann

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