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A new class of accelerating, exact, explicit and simple solutions of relativistic hydrodynamics is presented. Since these new solutions yield a finite rapidity distribution, they lead to an advanced estimate of the initial energy density…

核理论 · 物理学 2011-08-04 T. Csorgo , M. I. Nagy , M. Csanad

We perform a systematic analysis of flow-like solutions in theories of Einstein gravity coupled to multiple scalar fields, which arise as holographic RG flows as well as in the context of cosmological solutions driven by scalars. We use the…

高能物理 - 理论 · 物理学 2018-08-01 Francesco Nitti , Leandro Silva Pimenta , Danièle A. Steer

We describe the details of 3+1 dimensional relativistic hydrodynamic code for the simulations of quark-gluon/hadron matter expansion in ultra-relativistic heavy ion collisions. The code solves the equations of relativistic viscous…

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

We introduce a novel approach to study the longitudinal hydrodynamic expansion of the quark-gluon fluid created in heavy-ion collisions. It consists of two steps: First, we apply the maximum entropy method to reconstruct the freeze-out…

核理论 · 物理学 2014-04-24 Mikhail Stephanov , Yi Yin

In this work we investigate the impact of conformal symmetry breaking on hydrodynamization of a far-from-equilibrium fluid. We find a new kind of transseries solutions for the non-conformal hydrodynamic equations of a longitudinal boost…

流体动力学 · 物理学 2023-06-21 Syo Kamata , Jakub Jankowski , Mauricio Martinez

Irrotational relativistic vortex configurations in uniform subsonic motion with respect to a surrounding perfect fluid are analysed for the purpose of application to superfluid layers in neutron stars. Asymptotic solutions are found by…

天体物理学 · 物理学 2009-10-30 Brandon Carter , David Langlois , Denis Priou

We consider the hydrodynamics of strongly interacting quark gluon plasma in finite temperature and density using the holographic duality of charged black hole in anti DeSitter space. We calculate the transport coefficients at arbitrary…

高能物理 - 理论 · 物理学 2012-07-11 Yoshinori Matsuo , Sang-Jin Sin , Yang Zhou

We consider the dynamics of an expanding superfluid modeled by Mueller-Israel-Stewart theory coupled to a complex scalar field with a $U(1)$ symmetry that is spontaneously broken. This is a manageable theoretical setting for explorations of…

高能物理 - 理论 · 物理学 2026-03-19 Alexander Soloviev , Michał Spaliński

We introduce a combined fully three-dimensional macroscopic/microscopic transport approach employing relativistic 3D-hydrodynamics for the early, dense, deconfined stage of the reaction and a microscopic non-equilibrium model for the later…

核理论 · 物理学 2008-11-26 Chiho Nonaka , Steffen A. Bass

In this paper, the well-posedness and optimal convergence rates of subsonic irrotational flows through a three dimensional infinitely long nozzle with a smooth obstacle inside are established. More precisely, the global existence and…

偏微分方程分析 · 数学 2020-08-26 Lei Ma , Chunjing Xie

We show that by requiring positivity of the longitudinal pressure it is possible to constrain the initial conditions one can use in 2nd-order viscous hydrodynamical simulations of ultrarelativistic heavy-ion collisions. We demonstrate this…

高能物理 - 唯象学 · 物理学 2009-09-09 Mauricio Martinez , Michael Strickland

We present some exact solutions to the ideal hydrodynamics of a relativistic superfluid with an almost-conformal equation of state. The solutions have stress tensors which are invariant under Lorentz boosts in one direction, and represent…

高能物理 - 理论 · 物理学 2022-10-19 Ronnie Rodgers , Javier G. Subils

The scaling properties of the flow harmonics for charged hadrons $v_{n}$ and their ratios $[ v_n/(v_2)^{n/2}]_{n\geq 3}$, are studied for a broad range of transverse momenta ($p_T$) and centrality selections in Au+Au and Pb+Pb collisions at…

核实验 · 物理学 2011-09-01 Roy A. Lacey , A. Taranenko , J. Jia , N. N. Ajitanand , J. M. Alexander

The Brownian motion of a heavy quark under a rotating plasma corresponds to BTZ black hole is studied using holographic method from string theory. The position of heavy quark is represented as the end of string at the boundary of BTZ black…

高能物理 - 理论 · 物理学 2016-06-10 Ardian Nata Atmaja

In ultrarelativistic heavy-ion collisions the local three-volume measure is expanding in the longitudinal and transverse directions. This is similar to the Hubble-expansion of the universe, except that the former is not locally isotropic.…

高能物理 - 唯象学 · 物理学 2009-10-31 Adrian Dumitru

Acoustic perturbations in a parallel relativistic flow of an inviscid fluid are considered. The general expression for the frequency of the sound waves in a uniformly (with zero shear) moving medium is derived. It is shown that relativity…

天体物理学 · 物理学 2007-05-23 A. D. Rogava , V. I. Berezhiani , S. M. Mahajan

We discuss a model for the space-time evolution of ultrarelativistic heavy-ion collisions which employs relativistic hydrodynamics within one region of the forward light-cone, and microscopic transport theory (i.e. UrQMD) in the complement.…

核理论 · 物理学 2009-10-31 A. Dumitru , S. A. Bass , M. Bleicher , H. Stöcker , W. Greiner

In this paper we present a convergence analysis for the Nystrom method proposed in [Jour. Comput. Phys. 169 pp. 2921-2934, 2001] for the solution of the combined boundary integral equation formulations of sound-soft acoustic scattering…

数值分析 · 数学 2012-10-12 Oscar P. Bruno , Victor Dominguez , Francisco-Javier Sayas

In this paper, using the techniques of Gauge/gravity duality we explore the hydrodynamic regime of $ z=3 $ Lifshitz fixed points in $ 1+1 $ dimensions. The speed of sound in the non-relativistic plasma turns out to be $\sqrt{3}$, which…

高能物理 - 理论 · 物理学 2018-01-30 Arpan Bhattacharyya , Dibakar Roychowdhury

Analytical solution of one dimensional hydrodynamical model is derived, where phase transition from the QGP state to the hadronic state is effectively taken into account. The single particle rapidity distribution of charged $\pi$ mesons…

高能物理 - 唯象学 · 物理学 2010-12-14 Naomichi Suzuki