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相关论文: Early time dynamics far from equilibrium via holog…

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It depends: While we find within holography that the lifetime of the magnetic field for collider energies like the ones achieved at RHIC is long enough to build up the chiral magnetic current, the lifetime of the magnetic field at LHC seems…

高能物理 - 唯象学 · 物理学 2021-08-06 Jewel K. Ghosh , Sebastian Grieninger , Karl Landsteiner , Sergio Morales-Tejera

In this paper we give an overview of some recent progress in using holography to study various far-from-equilibrium condensed matter systems. Non-equilibrium problems are notoriously difficult to deal with, not to mention at strong coupling…

高能物理 - 理论 · 物理学 2018-11-27 Hong Liu , Julian Sonner

The tiny droplets of Quark Gluon Plasma (QGP) created in high-energy nuclear collisions experience fast expansion and cooling with a lifetime of a few $\text{fm}/c$. Despite the information provided by probes such as jet quenching and…

高能物理 - 唯象学 · 物理学 2018-06-13 Liliana Apolinário , José Guilherme Milhano , Gavin P. Salam , Carlos A. Salgado

We calculate leading-order dilepton yields from a quark-gluon plasma which has a time-dependent anisotropy in momentum space. Such anisotropies can arise during the earliest stages of quark-gluon plasma evolution due to the rapid…

高能物理 - 唯象学 · 物理学 2014-11-18 Mauricio Martinez

We report on the approach towards the hydrodynamic regime of boost-invariant N=4 super Yang-Mills plasma at strong coupling starting from various far-from-equilibrium states at tau=0. The results are obtained through numerical solution of…

高能物理 - 理论 · 物理学 2012-06-13 Michal P. Heller , Romuald A. Janik , Przemyslaw Witaszczyk

We study the isentropic evolution of the matter produced in relativistic heavy-ion collisions for various values of the entropy-per-baryon ratio of interest for the ongoing and future experimental searches for the critical endpoint (CEP) in…

高能物理 - 唯象学 · 物理学 2020-03-11 Mario Motta , Rainer Stiele , Wanda Maria Alberico , Andrea Beraudo

We discuss the evolution of anisotropic boost-invariant quark-gluon plasma possibly created at the early stages of relativistic heavy-ion collisions. Our considerations are based on the recently proposed formalism that is an extension of…

核理论 · 物理学 2010-01-15 W. Florkowski , R. Ryblewski

We review the transport properties of the strongly interacting quark-gluon plasma (QGP) created in heavy-ion collisions at ultrarelativistic energies, i.e. out-of equilibrium, and compare them to the equilibrium properties. The description…

核理论 · 物理学 2021-12-15 Olga Soloveva , Pierre Moreau , Elena Bratkovskaya

Heavy-ion collisions at $\sqrt{s_\mathrm{NN}} \sim 10$ GeV probe the QCD phase diagram at large baryon densities. Because the longitudinal Lorentz contraction is small at these collision energies, understanding the dynamics during the early…

核理论 · 物理学 2023-07-18 Chun Shen , Abel Noble , Jean-François Paquet , Björn Schenke , Charles Gale

We interpret as shear viscosity the anisotropic pressure that emerges in inhomogeneous spherically symmetric spacetimes described by the Lemaitre-Tolman-Bondi (LTB) metric in a comoving frame. By assuming that local isotropic pressure and…

广义相对论与量子宇宙学 · 物理学 2008-12-24 Roberto A Sussman

We study how the inclusion of energy dependence as dictated by quantum chromodynamic (QCD) small-$x$ evolution equations affects key observables in ultra-relativistic heavy-ion collisions. Specifically, we incorporate JIMWLK evolution into…

核理论 · 物理学 2026-03-20 Heikki Mäntysaari , Björn Schenke , Chun Shen , Wenbin Zhao

We present a novel approach to the treatment of thermal fluctuations in the (3+1)-D viscous hydrodynamic simulation MUSIC. The phenomenological impact of thermal fluctuations on hadronic observables is investigated using the IP-Glasma +…

核理论 · 物理学 2019-02-20 Mayank Singh , Chun Shen , Scott McDonald , Sangyong Jeon , Charles Gale

We present analytic results that describe the gluon field, or glasma, at very early times after a collision of relativistic heavy ions at proper time $\tau=0$. We use a Colour Glass Condensate approach, and perform an expansion in $\tau$.…

高能物理 - 唯象学 · 物理学 2022-10-05 Margaret E. Carrington , Alina Czajka , Stanislaw Mrówczyński

We exploit the concept of hydrodynamic attractors to establish a general relation between the initial state energy and the produced particle multiplicities in high-energy nuclear collisions. When combined with an ab initio model of energy…

高能物理 - 唯象学 · 物理学 2021-01-01 Giuliano Giacalone , Aleksas Mazeliauskas , Sören Schlichting

We study the thermal dilepton and photon production from relativistic heavy ion collisions in presence of viscosities by employing the recently developed second order dissipative hydrodynamic formulation estimated within a quasiparticle…

核理论 · 物理学 2022-12-16 Lakshmi J. Naik , V. Sreekanth

We present ECHO-QGP, a numerical code for $(3+1)$-dimensional relativistic viscous hydrodynamics designed for the modeling of the space-time evolution of the matter created in high energy nuclear collisions. The code has been built on top…

Direct photon production from a longitudinally expanding quark-gluon plasma (QGP) at Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (LHC) energies is studied with a real-time kinetic description that is consistently…

高能物理 - 唯象学 · 物理学 2007-05-23 Shang-Yung Wang , Daniel Boyanovsky , Kin-Wang Ng

Many hybrid models of heavy ion collisions construct the initial state for hydrodynamics from transport models. Hydrodynamics requires that the energy-momentum tensor $T^{\mu\nu}$ and four-currents $j^{\mu}$ do not deviate considerably from…

核理论 · 物理学 2016-03-23 Dmytro Oliinychenko , Hannah Petersen

The strong longitudinal expansion characteristic of heavy-ion collisions leads to universal attractor behavior of the resulting drop of quark-gluon plasma (QGP) already at very early times. Assuming approximate boost invariance and…

核理论 · 物理学 2024-12-17 Xin An , Michał Spaliński

In gold-gold collisions of the Relativistic Heavy Ion Collider (RHIC) a perfect fluid of quarks, sometimes called the strongly interacting quark gluon plasma (sQGP) is created for an extremely short time. The time evolution of this fluid…

核理论 · 物理学 2015-03-17 Mate Csanad , Imre Majer