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In this paper, we study the influence of an external magnetic field in holographic QCD models where the backreaction is modeled in via an appropriate choice of the background metric. We add a phenomenological soft wall dilaton to…

High Energy Physics - Theory · Physics 2016-06-08 D. Dudal , D. R. Granado , T. G. Mertens

We study holographic thermalization of a strongly coupled theory inspired by two colliding shock waves in a vacuum confining background. Holographic thermalization means a black hole formation, in fact a trapped surface formation. As a…

High Energy Physics - Theory · Physics 2015-06-23 D. S. Ageev , I. Ya. Aref'eva

We put forward an alternative way to estimate the deconfinement temperature in bottom-up holographic models. The deconfinement in AdS/QCD is related to the Hawking-Page phase transition, in which the critical Hawking temperature is…

High Energy Physics - Phenomenology · Physics 2019-01-11 S. S. Afonin , A. D. Katanaeva

We review 5D holographic approaches to finite temperature QCD. Thermodynamic properties of the "hard-wall" and the "soft-wall" models are derived. Various non-realistic features in these models are cured by the set-up of improved…

High Energy Physics - Theory · Physics 2009-05-22 Umut Gursoy

For type IIB supergravity with a running axio-dilaton, we construct bulk solutions which admit a cosmological background metric of Friedmann-Robertson-Walker type. These solutions include both a dark radiation term in the bulk as well as a…

High Energy Physics - Theory · Physics 2011-08-09 Johanna Erdmenger , Kazuo Ghoroku , Rene Meyer

We describe the dynamics of strongly coupled field theories in de Sitter spacetime using the holographic gauge/gravity duality. The main motivation for this is to explore the possibility of dynamical phase transitions during cosmological…

High Energy Physics - Theory · Physics 2011-04-28 Donald Marolf , Mukund Rangamani , Mark Van Raamsdonk

We study various holographic pure and mixed state entanglement measures in the confined/deconfined phases of a bottom-up AdS/QCD model in the presence of a background magnetic field. We analyse the entanglement entropy, entanglement wedge…

High Energy Physics - Theory · Physics 2023-05-10 Parul Jain , Siddhi Swarupa Jena , Subhash Mahapatra

We study the confinement/deconfinement phase transition of holographic AdS/QCD models by using Ricci flat $AdS_5$ black holes up to ${\cal O}(\alpha'^3)$, which corresponds to the $\lambda$ expansion correction in the dual field theory to…

High Energy Physics - Theory · Physics 2008-11-26 Rong-Gen Cai , Nobuyoshi Ohta

We investigate the high temperature phase of a dilaton flow deformation of the AdS/CFT Correspondence. We argue that these geometries should be interpreted as the N=4 gauge theory perturbed by a SO(6) invariant scalar mass and that the…

High Energy Physics - Theory · Physics 2009-02-23 Nick Evans , Ed Threlfall

We study the T-{\mu} phase diagram of anisotropic media, created in heavy-ion collisions (HIC). Such a statement of the problem is due to several indications that this media is anisotropic just after HIC. To study T-{\mu} phase diagram we…

High Energy Physics - Theory · Physics 2019-04-30 Irina Aref'eva , Kristina Rannu , Pavel Slepov

In this paper we investigate the influence of an external magnetic field on a flavoured holographic gauge theory dual to the D3/D5 intersection at finite temperature. Our study shows that the external magnetic field has a freezing effect on…

High Energy Physics - Theory · Physics 2010-04-30 Veselin G. Filev

We study confinement-deconfinement phase transition in a holographic soft-wall QCD model. By solving the Einstein-Maxwell-scalar system analytically, we obtain the phase structure of the black hole backgrounds. We then impose probe open…

High Energy Physics - Theory · Physics 2017-10-11 Meng-Wei Li , Yi Yang , Pei-Hung Yuan

We study phase transitions in five-dimensional Einstein Gravity with a negative cosmological constant, coupled to a Skyrme matter field. These transitions are topological generalizations of the Hawking-Page transition between thermal Anti…

High Energy Physics - Theory · Physics 2022-06-08 Casey Cartwright , Benjamin Harms , Matthias Kaminski , Ronny Thomale

The thermodynamics of d5 AdS BHs with positive, negative or zero curvature spatial section in higher derivative (HD) gravity is described. HD contribution to free energy may change its sign which leads to more complicated regime for…

High Energy Physics - Theory · Physics 2009-09-17 Shin'ichi Nojiri , Sergei D. Odintsov

The finite temperature physics of the pure glue sector in the improved holographic QCD model of arXiv:0707.1324 and arXiv:0707.1349 is addressed. The thermodynamics of 5D dilaton gravity duals to confining gauge theories is analyzed. We…

High Energy Physics - Theory · Physics 2008-10-31 U. Gursoy , E. Kiritsis , L. Mazzanti , F. Nitti

In earlier work, we introduced a dynamical Einstein--Maxwell--dilaton model which mimics essential features of QCD (thermodynamics) below and above deconfinement. Although there are some subtle differences in the confining regime of our…

High Energy Physics - Theory · Physics 2018-08-15 David Dudal , Subhash Mahapatra

This paper presents a dual gravity model for a (2+1)-dimensional system with a limit on finite charge density and temperature, which will be used to study the properties of the holographic phase transition to paramagnetism-ferromagnetism in…

High Energy Physics - Theory · Physics 2023-10-17 Fabiano F. Santos , Moisés Bravo-Gaete , Oleksii Sokoliuk , Alexander Baransky

We investigate rotating effect on deconfinement phase transition in an Einstein-Maxwell-Dilaton(EMD) model in bottom-up holographic QCD approach. By constructing a rotating black hole, which is supposed to be dual to rotating strongly…

High Energy Physics - Phenomenology · Physics 2021-08-04 Xun Chen , Lin Zhang , Danning Li , Defu Hou , Mei Huang

We investigate the behavior of entanglement entropy in the holographic QCD model proposed by Gubser et al. By choosing suitable parameters of the scalar self-interaction potential, this model can exhibit various types of phase structures:…

High Energy Physics - Theory · Physics 2017-01-31 Shao-Jun Zhang

We discuss the entropy carried by a quark-antiquark pair, in particular across the deconfinement transition. We therefore rely on a self-consistent solution to Einstein-Maxwell-dilaton gravity, capable of mimicking essential features of…

High Energy Physics - Theory · Physics 2017-12-27 David Dudal , Subhash Mahapatra