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相关论文: Hydrodynamical evolution near the QCD critical end…

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We report recent progress on causal viscous hydrodynamics for relativistic heavy ion collisions. For fixed specific shear viscosity eta/s, uncertainties in the elliptic flow arising from initial conditions, equation of state, bulk viscosity…

核理论 · 物理学 2010-01-15 Huichao Song , Ulrich W. Heinz

We compute the homogeneous limit of non-hydrodynamic quasinormal modes (QNM's) of a phenomenologically realistic Einstein-Maxwell-Dilaton (EMD) holographic model for the Quark-Gluon Plasma (QGP) that is able to: i) {\it quantitatively}…

高能物理 - 唯象学 · 物理学 2018-08-31 Romulo Rougemont , Renato Critelli , Jorge Noronha

We employ a non-equilibrium Quantum Chromodynamics (QCD) kinetic description to study the kinetic and chemical equilibration of the Quark-Gluon Plasma (QGP) at weak coupling. Based on our numerical framework, which explicitly includes all…

高能物理 - 唯象学 · 物理学 2021-09-22 Xiaojian Du , Sören Schlichting

We present a numerical code modeling the evolution of the medium formed in relativistic heavy ion collisions, ECHO-QGP. The code solves relativistic hydrodynamics in $(3+1)-$D, with dissipative terms included within the framework of…

We explore the critical fluctuations near the chiral critical endpoint (CEP) in a chiral effective model and discuss possible signals of the CEP, recently explored experimentally in nuclear collision. Particular attention is paid to the…

高能物理 - 唯象学 · 物理学 2016-01-27 Gábor András Almási , Bengt Friman , Krzysztof Redlich

Correlations related to local charge conservation provide insight into the creation and evolution of up, down and strange charges in the quark-gluon plasma. Here, the evolution of charge correlations is overlaid onto a hydrodynamic…

核理论 · 物理学 2019-05-01 Scott Pratt , Christopher Plumberg

Using anisotropic hydrodynamics, we examine the existence of early-time attractors of non-conformal systems undergoing Bjorken expansion. In the case of a constant mass, we find that the evolution of the scaled longitudinal pressure is…

核理论 · 物理学 2023-05-01 Mubarak Alqahtani

The large-scale properties of homogeneous states after quantum quenches in integrable systems have been successfully described by a semiclassical picture of moving quasiparticles. Here we consider the generalisation for the entanglement…

统计力学 · 物理学 2018-09-18 Bruno Bertini , Maurizio Fagotti , Lorenzo Piroli , Pasquale Calabrese

One of the many physical questions that have emerged from studies of heavy-ion collisions at RHIC and the LHC concerns the validity of hydrodynamic modelling at the very early stages, when the Quark-Gluon Plasma system produced is still far…

核理论 · 物理学 2023-08-24 Jakub Jankowski , Michał Spaliński

The far-from equilibrium dynamics of the pre-hydrodynamic quark-gluon plasma (QGP) formed in heavy ion collisions can be characterized by distinct stages, during each of which the system loses some memory of its initial condition, until…

高能物理 - 唯象学 · 物理学 2025-04-21 Krishna Rajagopal , Bruno Scheihing-Hitschfeld , Rachel Steinhorst

The entropy production occurring in relativistic hydrodynamical systems such as the quark-gluon plasma (QGP) formed in high-energy nuclear collisions is explored. We study mechanisms which change the composition of the fluid, i.e. particle…

高能物理 - 唯象学 · 物理学 2008-11-26 H. -Th. Elze , J. Rafelski , L. Turko

We utilize an event-by-event relativistic hydrodynamic calculation performed at a number of different incident beam energies to investigate the creation of hot and dense QCD matter near the critical point. Using state-of-the-art analysis…

The location of the critical end point (CEP) in the QCD phase diagram is determined under different scenarios. The effect of strangeness, isospin/charge asymmetry and an external magnetic field is investigated. The discussion is performed…

高能物理 - 唯象学 · 物理学 2014-03-27 Pedro Costa , Márcio Ferreira , Hubert Hansen , Débora P. Menezes , Constança Providência

The transverse momentum dependence of elliptic flow of pions calculated in a full (3+1)d Boltzmann approach with an intermediate hydrodynamic stage for heavy ion reactions for CERN-SPS energies is discussed in the context of the…

核理论 · 物理学 2009-11-18 H. Petersen , J. Steinheimer , G. Burau , M. Bleicher

Kinetic and chemical equilibrations play important roles in the formation of the quark-gluon plasma (QGP) in relativistic heavy-ion collisions (HICs). These processes further influence the production of hard and electromagnetic probes in…

高能物理 - 唯象学 · 物理学 2023-12-08 Xiaojian Du

A critical point in the phase diagram of Quantum Chromodynamics (QCD), if established either theoretically or experimentally, would be as profound a discovery as the good-old gas-liquid critical point. Unlike the latter, however,…

高能物理 - 唯象学 · 物理学 2023-07-19 Rajiv V. Gavai

In this dissertation I introduce relativistic heavy ion collisions and describe theoretical approaches to understanding them--in particular, viscous hydrodynamic simulations and investigations of final state interactions. The successful…

核理论 · 物理学 2009-08-31 Matthew Luzum

Critical thermodynamics close to a metamagnetic quantum critical endpoint (QCEP) in a metal is discussed within the framework of spin-fluctuation theory. We analyze the effective potential for the Ising order parameter that is renormalized…

强关联电子 · 物理学 2015-06-15 Mario Zacharias , Markus Garst

We compute the longitudinal hydrodynamic flow in ultrarelativistic heavy ion collisions at $\sqrt{s}$ = 5500 GeV by using boost non-invariant initial conditions following from perturbative QCD. The transfer of entropy and energy from the…

核理论 · 物理学 2011-09-13 K. J. Eskola , K. Kajantie , P. V. Ruuskanen

We compare our quasi-particle model with recent lattice QCD results for the equation of state at finite temperature and baryo-chemical potential. The inclusion of the QCD critical end point into models is discussed. We propose a family of…

高能物理 - 唯象学 · 物理学 2008-11-26 B. Kampfer , M. Bluhm , R. Schulze , D. Seipt , U. Heinz