Holographic model for light quarks in anisotropic hot dense QGP with external magnetic field

Abstract

We present a five-dimensional twice anisotropic holographic model supported by Einstein-dilaton-three-Maxwell action describing light quarks. The first of the Maxwell fields provides finite chemical potential. The second Maxwell field serves for anisotropy, characterizing spatial anisotropy of the QGP produced in heavy-ion collisions (HIC). The third Maxwell field is related to a magnetic field that appears in HIC. The dependence of the 5-dim black hole solution and confinement/deconfinement phase diagram on this magnetic field is considered. The effect of the inverse magnetic catalyses for light quarks phase diagram is obtained. Positions of critical end points are found. We also study the behavior of the conductivity for light quarks in both isotropic and anisotropic cases and show that behaviour of the conductivity near critical points essentially depend on quark masses, meanwhile at high temperature they are similar.

31 pages, 13 figures

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• Dilaton photoproduction in a magnetic dipole field of pulsars and magnetars
• Jet Quenching in Holographic QCD as an Indicator of Phase Transitions in Anisotropic Regimes
• Beta-Functions and RG flows for Holographic QCD with Heavy and Light Quarks: Isotropic case
• A holographic study on QCD phase transition and neutron star properties
• Probing Quarkonium Diffusion in a Magnetized Quark-Gluon Plasma
• Toward a holographic realization of the 2+1-flavor QCD phase structure
• Magnetic Catalysis for Heavy Quarks in Anisotropic Holographic Model