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相关论文: Non-equilibrium attractor in high-temperature QCD …

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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

We use the results of ultra-precise cold-atom-recoil experiments to constrain the form of the energy-momentum dispersion relation, a structure that is expected to be modified in several quantum-gravity approaches. Our strategy of analysis…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Giovanni Amelino-Camelia , Claus Laemmerzahl , Flavio Mercati , Guglielmo M. Tino

We study the non-boost-invariant evolution of a quark-gluon plasma subject to large early-time momentum-space anisotropies. Rather than using the canonical hydrodynamical expansion of the distribution function around an isotropic…

核理论 · 物理学 2014-01-08 Mauricio Martinez , Michael Strickland

We analyze the time evolution of several physical observables, namely the pressure anisotropy, the scalar condensate, the charge density, and also, for the first time, the non-equilibrium entropy for a Bjorken expanding strongly coupled…

高能物理 - 理论 · 物理学 2022-12-26 Romulo Rougemont , Willians Barreto

A phenomenological analysis of the experimental measurements of transverse momentum spectra of identified charged hadrons and strange hyperons in Pb-Pb and Xe-Xe collisions at the LHC is presented. The analysis is based on the relativistic…

高能物理 - 唯象学 · 物理学 2023-12-21 L. Vermunt , Y. Seemann , A. Dubla , S. Floerchinger , E. Grossi , A. Kirchner , S. Masciocchi , I. Selyuzhenkov

We derive the non-equilibrium single-particle momentum distribution function of a hadron resonance gas. We then study the effects that this newly derived expression can have in the freeze-out description of fluid-dynamical models of heavy…

核理论 · 物理学 2015-06-12 G. S. Denicol , H. Niemi

We investigate the thermodynamical properties of quantum fields in curved spacetime. Our approach is to consider quantum fields in curved spacetime as a quantum system undergoing an out-of-equilibrium transformation. The non-equilibrium…

量子物理 · 物理学 2016-01-14 Nana Liu , John Goold , Ivette Fuentes , Vlatko Vedral , Kavan Modi , David Edward Bruschi

Collective excitations of a hot QCD medium are the main focus of the present article. The analysis is performed within semi-classical transport theory with isotropic and anisotropic momentum distribution functions for the gluonic and…

核理论 · 物理学 2017-06-07 M. Yousuf Jamal , Sukanya Mitra , Vinod Chandra

We study experimentally the far-from-equilibrium dynamics in ferromagnetic Heisenberg quantum magnets realized with ultracold atoms in an optical lattice. After controlled imprinting of a spin spiral pattern with adjustable wave vector, we…

The momentum distribution of quark-gluon plasma at the early stage of a relativistic heavy-ion collision is anisotropic and consequently the system, which is assumed to be weakly coupled, is unstable due chromomagnetic plasma modes. We…

高能物理 - 唯象学 · 物理学 2015-11-04 Margaret E. Carrington , Katarzyna Deja , Stanislaw Mrowczynski

This thesis focuses on how jets are modified by the nonequilibrium quark-gluon plasma during the initial stages in heavy-ion collisions. Its influence on their propagation is typically encoded in a single medium function, the dipole cross…

高能物理 - 唯象学 · 物理学 2025-12-30 Florian Lindenbauer

We study the properties of gluon plasma subjected to a weak acceleration using first-principle numerical Monte Carlo simulations. We use the Luttinger (Tolman-Ehrenfest) correspondence between temperature gradient and gravitational field to…

高能物理 - 格点 · 物理学 2025-03-24 M. N. Chernodub , V. A. Goy , A. V. Molochkov , D. V. Stepanov , A. S. Pochinok

Quark-gluon plasma's (QGP) properties at non-hydrodynamic and non-perturbative regimes remain largely unexplored. Here, we examine the response functions describing how a QGP-like plasma responds to initial energy-momentum disturbance in…

核理论 · 物理学 2024-04-10 Weiyao Ke , Yi Yin

There has been substantial progress in recent years in the quantitative understanding of the nonequilibrium time evolution of quantum fields. Important topical applications, in particular in high energy particle physics and cosmology,…

高能物理 - 唯象学 · 物理学 2010-02-04 J. Berges

We study the role of QCD plasma instabilities in non-equilibrium quark-gluon plasmas. First, we argue that such instabilities must drastically modify the "bottom-up" thermalization scenario for heavy-ion collisions. Second, we discuss…

高能物理 - 唯象学 · 物理学 2010-02-16 Peter Arnold , Jonathan Lenaghan , Guy D. Moore

The early dynamics in heavy-ion collisions involves a rapid, far from equilibrium evolution. This early pre-equilibrium stage of the dynamics can be modeled using kinetic equations. The effect of this pre-equilibrium stage on final…

核理论 · 物理学 2023-04-05 Piotr Bozek

We derive the effective equations for the out of equilibrium time evolution of the order parameter and the fluctuations of a scalar field theory in spatially flat FRW cosmologies.The calculation is performed both to one-loop and in a…

高能物理 - 唯象学 · 物理学 2009-10-22 D. Boyanovsky , H. J. de Vega , R. Holman

Warm dense matter (WDM) is an exotic state on the border between condensed matter and dense plasmas. Important occurrences of WDM include dense astrophysical objects, matter in the core of our Earth, as well as matter produced in strong…

等离子体物理 · 物理学 2021-02-24 Paul Hamann , Jan Vorberger , Tobias Dornheim , Zhandos Moldabekov , Michael Bonitz

Motivated by the initial stages of high-energy heavy-ion collisions, we study excitations of far-from-equilibrium 2+1 dimensional gauge theories using classical-statistical lattice simulations. We evolve field perturbations over a strongly…

高能物理 - 唯象学 · 物理学 2021-06-18 K. Boguslavski , A. Kurkela , T. Lappi , J. Peuron

Plasma instabilities can play a fundamental role in quark-gluon plasma equilibration in the high energy (weak coupling) limit. Early simulations of the evolution of plasma instabilities in non-abelian gauge theory, performed in one spatial…

高能物理 - 唯象学 · 物理学 2008-11-26 Peter Arnold , Po-Shan Leang