English
Related papers

Related papers: Inverse magnetic catalysis in holographic models o…

200 papers

We study the deconfinement phase transition in $ (2+1) $-dimensional holographic $ SU(N) $ gauge theories in the presence of an external magnetic field from the holographic hard and soft wall models. We obtain exact solutions for the…

High Energy Physics - Theory · Physics 2018-06-08 Diego M. Rodrigues , Eduardo Folco Capossoli , Henrique Boschi-Filho

Two-color lattice QCD with N_f=4 staggered fermion degrees of freedom (no rooting trick is applied) with equal electric charge q is studied in a homogeneous magnetic background field B and at non-zero temperature T. In order to circumvent…

High Energy Physics - Lattice · Physics 2014-04-02 E. -M. Ilgenfritz , M. Muller-Preussker , B. Petersson , A. Schreiber

We discuss the phenomenon of (inverse) magnetic catalysis for both the deconfinement and chiral transition. We discriminate between the hard and soft wall model, which we suitably generalize to include a magnetic field. Our findings show a…

High Energy Physics - Theory · Physics 2017-04-05 David Dudal , Diego Rocha Granado , Thomas G. Mertens

Using two different models from holographic quantum chromodynamics (QCD) we study the deconfinement phase transition in $2+1$ dimensions in the presence of a magnetic field. Working in 2+1 dimensions lead us to {\sl exact} solutions on the…

High Energy Physics - Theory · Physics 2018-03-14 Diego M. Rodrigues , Eduardo Folco Capossoli , Henrique Boschi-Filho

We explore the effect of magnetic field on chiral condensation in QCD via a simple bottom up holographic model which inputs QCD dynamics through the running of the anomalous dimension of the quark bilinear. Bottom up holography is a form of…

High Energy Physics - Phenomenology · Physics 2016-10-26 Nick Evans , Carlisson Miller , Marc Scott

We evaluate the impact of an external magnetic field on the chiral symmetry and confinement-deconfinement transition temperatures by using a vector-vector contact interaction model for quarks regularized so as to include an explicit…

High Energy Physics - Phenomenology · Physics 2016-05-19 Aftab Ahmad , Alfredo Raya

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

In this paper, we consider the Einstein-Maxwell-dilaton holographic model for light quarks with nonzero magnetic field and chemical potential. First, we study the phase diagrams in $T-\mu$ and $T-B$ planes. We observe inverse magnetic…

High Energy Physics - Phenomenology · Physics 2024-09-16 Zhou-Run Zhu , Defu Hou

We explore the effect of the magnetic field on the QCD phase transition through AdS/CFT correspondence. By introducing an anisotropic magnetic field in the Einstein-Maxwell-Scalar system, a family of analytic solutions is obtained by the…

High Energy Physics - Theory · Physics 2020-05-05 Song He , Yi Yang , Pei-Hung Yuan

We study the dependence of the chiral condensate on external magnetic field in the context of holographic QCD at large number of flavors. We consider a holographic QCD model where the flavor degrees of freedom fully backreact on the color…

High Energy Physics - Theory · Physics 2017-04-05 Umut Gürsoy , Ioannis Iatrakis , Matti Järvinen , Govert Nijs

We study the chiral phase transition in a magnetic field at finite temperature and chemical potential within the Sakai-Sugimoto model, a holographic top-down approach to (large-N_c) QCD. We consider the limit of a small separation of the…

High Energy Physics - Theory · Physics 2011-03-18 Florian Preis , Anton Rebhan , Andreas Schmitt

Magnetic effects on chiral phase transition have been investigated in a modified soft-wall AdS/QCD model, in which the dilaton field is taken to be negative at the ultraviolet region and positive at the infrared region as in…

High Energy Physics - Theory · Physics 2017-03-08 Danning Li , Mei Huang , Yi Yang , Pei-Hung Yuan

We investigate the effects of strong magnetic fields on the QCD phase structure at vanishing density by solving the gluon and quark gap equations, and by studying the dynamics of the quark scattering with the four-fermi coupling. The chiral…

High Energy Physics - Phenomenology · Physics 2015-05-14 Niklas Mueller , Jan M. Pawlowski

We present the first determination of the topological susceptibility from lattice QCD in the presence of strong background magnetic fields. Our simulations employ 2+1 flavours of stout improved staggered quarks with physical masses and…

High Energy Physics - Lattice · Physics 2025-01-22 B. B. Brandt , G. Endrődi , J. J. Hernández Hernández , G. Markó

Lattice simulations have demonstrated that a background (electro)magnetic field reduces the chiral/deconfinement transition temperature of quantum chromodynamics for eB < 1 GeV^2. On the level of observables, this reduction manifests itself…

High Energy Physics - Lattice · Physics 2015-07-17 Gergely Endrodi

We investigate the effect of a homogeneous magnetic field on the thermal deconfinement transition of QCD in the large $N_c$ limit. First we discuss how the critical temperature decreases due to the inclusion of $N_f \ll N_c$ flavors of…

High Energy Physics - Phenomenology · Physics 2013-08-08 Eduardo S. Fraga , Jorge Noronha , Leticia F. Palhares

We investigate the effect of a non-zero magnetic field on the chiral condensate using a holographic QCD approach. We extend the model proposed by Iatrakis, Kiritsis and Paredes in arXiv:1010.1364 that realises chiral symmetry breaking…

High Energy Physics - Theory · Physics 2020-12-02 Alfonso Ballon-Bayona , Jonathan P. Shock , Dimitrios Zoakos

In this talk we report on our study of two-colour lattice QCD with N_f=4 staggered fermion degrees of freedom with equal electric charge q in a homogeneous magnetic field B at non-zero temperature T. We find indications for a non-monotonic…

High Energy Physics - Lattice · Physics 2014-02-04 M. Muller-Preussker , B. Petersson , A. Schreiber , E. -M. Ilgenfritz , M. Kalinowski

It is well known that very large magnetic fields are generated when the Quark-Gluon Plasma is formed during peripheral heavy-ion collisions. Lattice, holographic, and other studies strongly suggest that these fields may, for observationally…

High Energy Physics - Theory · Physics 2016-04-20 Brett McInnes

We investigate the behavior of the pseudo-critical temperature of $N_f = 2+1$ QCD as a function of a static magnetic background field for different values of the pion mass, going up to $m_\pi \simeq 660$ MeV. The study is performed by…

High Energy Physics - Lattice · Physics 2018-09-19 Massimo D'Elia , Floriano Manigrasso , Francesco Negro , Francesco Sanfilippo
‹ Prev 1 2 3 10 Next ›