Phase Diagram Magnetic Features of Holographic Anisotropic Model for $z^4$-term Heavy Quarks

TL;DR

This paper investigates the thermodynamic and phase transition properties of a five-dimensional anisotropic holographic model for heavy quarks under magnetic fields, revealing behaviors like magnetic catalysis and phase diagram features.

Contribution

It introduces an extended warp factor and improved Maxwell coupling in a holographic model to analyze magnetic effects on heavy quark thermodynamics.

Findings

Identification of direct and inverse magnetic catalysis behaviors.

Presentation of a phase diagram with first-order phase transition.

Analysis of string tension behavior in magnetic fields.

Abstract

Thermodynamical features depending on magnetic field of the previously found five-dimensional anisotropic holographic solution for heavy quarks supported by Einstein-dilaton-three-Maxwell action with extended warp factor and improved coupling function for the Maxwell field providing chemical potential are studied. Direct/inverse magnetic catalysis behavior is considered. Phase diagram, composed of the 1-st order phase transition and temporal Wilson loops, corresponding to the stable direct magnetic catalysis scenario is presented. String tension behavior in magnetic field is discussed.