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We estimate the ratio of the thermalization time over the freeze-out time using a holographic AdS-Vaidya model for quark-gluon plasma formed in the heavy ion collisions. In the model the process of thermalization is described as formation…

High Energy Physics - Theory · Physics 2012-11-27 I. Ya. Arefeva , I. V. Volovich

We use a holographic method to investigate thermalization of a boost-invariant strongly interacting non-Abelian plasma. Boundary sourcing, a distorsion of the boundary metric, is employed to drive the system far from equilibrium.…

High Energy Physics - Phenomenology · Physics 2016-07-13 Loredana Bellantuono , Pietro Colangelo , Fulvia De Fazio , Floriana Giannuzzi , Stefano Nicotri

Using black brane solutions in 5d Lifshitz-like backgrounds with arbitrary dynamical exponent $\nu$, we construct the Vaidya geometry, asymptoting to the Lifshitz-like spacetime, which represents a thin shell infalling at the speed of…

High Energy Physics - Theory · Physics 2016-10-25 Irina Ya. Aref'eva , Anastasia A. Golubtsova , Eric Gourgoulhon

The relaxation of a strongly coupled plasma towards the hydrodynamic regime is studied by analyzing the evolution of local and nonlocal observables in the holographic approach. The system is driven in an initial anisotropic and far-from…

High Energy Physics - Theory · Physics 2016-12-21 Loredana Bellantuono

In this paper, we follow a `bottom-up' AdS/QCD approach to holographically probe the dynamics of a moving $q\bar{q}$ pair inside a strongly coupled plasma at the boundary. We consider a deformed AdS-Reissner Nordstr\"om metric in the bulk…

High Energy Physics - Theory · Physics 2020-04-27 Ashis Saha , Sunandan Gangopadhyay

We study Wilson loops in holographic duals of the $\mathcal{N}=4$ SYM quark-gluon plasma. For this we consider the Schwarzschild-$AdS_5$ and Kerr-$AdS_5$ black holes, which are dual to the non-rotating and rotating QGPs, correspondingly.…

High Energy Physics - Theory · Physics 2023-06-14 Anastasia A. Golubtsova , Nikita S. Tsegelnik

We estimate the thermalization time in two colliding shock waves holographic model of heavy-ion collisions. For this purpose we model the process by the Vaidya metric with a horizon defined by the trapped surface location. We consider two…

High Energy Physics - Theory · Physics 2016-12-16 Irina Ya. Aref'eva

We investigate the effective potential and the string tension for the spatial Wilson loop (SWL) in hot dense QGP with two types of anisotropy, i.e. external magnetic field and spatial anisotropy, employing a holographic approach for the…

High Energy Physics - Theory · Physics 2026-01-15 Irina Ya. Aref'eva , Ali Hajilou , Kristina Rannu , Pavel Slepov

The thermalization of a strongly coupled plasma is examined in the holographic framework through non-local observables: the equal-time two-point correlation function of a large dimension boundary operator, and Wilson loops of different…

High Energy Physics - Phenomenology · Physics 2017-11-22 Loredana Bellantuono

The problem of holographic thermalization in the framework of Einstein gravity coupled to Born-Infeld nonlinear electrodynamics is investigated. We use equal time two-point correlation functions and expectation values of Wilson loop…

High Energy Physics - Theory · Physics 2015-02-24 Giancarlo Camilo , Bertha Cuadros-Melgar , Elcio Abdalla

Dynamical evolution of thin shells composed by different kinds of degrees of freedom collapsing within asymptotically AdS spaces is explored with the aim of investigating models of holographic thermalization of strongly coupled systems.…

High Energy Physics - Theory · Physics 2013-04-09 Walter H. Baron , Damian Galante , Martin Schvellinger

Holographic thermalization is studied in the framework of Einstein-Maxwell-Gauss-Bonnet gravity. We use the two-point correlation function and expectation value of Wilson loop, which are dual to the renormalized geodesic length and minimal…

High Energy Physics - Theory · Physics 2015-06-17 Xiao-Xiong Zeng , Xian-Ming Liu , Wen-Biao Liu

Thermalization of quark-gluon plasmas in heavy-ion collisions is a difficult theoretical problem. One theoretical goal has been to understand the physics of thermalization in the relatively simplifying limit of arbitrarily high energy…

High Energy Physics - Phenomenology · Physics 2008-11-26 Peter Arnold , Guy D. Moore

We introduce higher-derivative Gauss-Bonnet correction terms in the gravity sector and we relate the modified gravity theory in the bulk to the strongly coupled quantum field theory on a de Sitter boundary. We study the process of…

High Energy Physics - Theory · Physics 2015-06-03 Shao-Jun Zhang , Bin Wang , Elcio Abdalla , Eleftherios Papantonopoulos

We study the thermalization of a strongly coupled quantum field theory in the presence of a chemical potential. More precisely, using the holographic prescription, we calculate non- local operators such as two point function, Wilson loop…

High Energy Physics - Theory · Physics 2015-06-05 Elena Caceres , Arnab Kundu

In a holographic approach, the evolution of a 4D strongly coupled non-Abelian plasma towards equilibrium can be studied investigating a 5D gravitational dual. The process driving the plasma out-of-equilibrium can be described by boundary…

High Energy Physics - Phenomenology · Physics 2015-10-16 Loredana Bellantuono , Pietro Colangelo , Fulvia De Fazio , Floriana Giannuzzi

We initiate the study of equilibration rates of strongly coupled quark-gluon plasmas in the absence of conformal symmetry. We primarily consider a supersymmetric mass deformation within ${\cal N}=2^{*}$ gauge theory and use holography to…

High Energy Physics - Theory · Physics 2015-06-24 Alex Buchel , Michal P. Heller , Robert C. Myers

Non-Abelian plasma instabilities play an important role in the non-equilibrium dynamics of a weakly coupled quark-gluon plasma. Using the discretized hard loop framework we calculate the time evolution of soft gluonic fields in a…

High Energy Physics - Phenomenology · Physics 2013-02-04 Maximilian Attems , Anton Rebhan , Michael Strickland

We study the collective modes of gluons in an anisotropic thermal medium in the presence of a constant background magnetic field using the hard-thermal loop (HTL) perturbation theory. The momentum space anisotropy of the medium has been…

High Energy Physics - Phenomenology · Physics 2022-12-15 Bithika Karmakar , Ritesh Ghosh , Arghya Mukherjee

I review our current understanding of the processes driving the thermalization and isotropization of the quark gluon plasma (QGP) created in ultrarelativistic heavy ion collisions (URHICs). I begin by discussing the phenomenological…

High Energy Physics - Phenomenology · Physics 2015-05-21 Michael Strickland
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