The z^4 anisotropic holographic heavy-quark model exhibits direct magnetic catalysis in both its first-order phase transition and its temporal-Wilson-loop crossover, and the string tension weakens sharply with magnetic field.
Beta-Function Dependence on Running Coupling in Holographic QCD Models
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We study the dependence of beta-function on running coupling constant in holographic models supported by Einstein-dilaton-Maxwell action for light and heavy quarks. Although, in the previous paper [arXiv:2402.14512], we considered different types of the dilaton boundary conditions, but since the behavior of $\beta$-function as a function of running coupling does not depend significantly on the boundary condition, we chose one. The corresponding $\beta$-functions are negative and monotonically decreasing functions, and have jumps on the 1-st order phase transitions for both light and heavy quarks. In addition, we compare our holographic results for $\beta$-function as a function of running coupling with perturbation results that obtained within 2-loop calculations.
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Phase Diagram Magnetic Features of Holographic Anisotropic Model for $z^4$-term Heavy Quarks
The z^4 anisotropic holographic heavy-quark model exhibits direct magnetic catalysis in both its first-order phase transition and its temporal-Wilson-loop crossover, and the string tension weakens sharply with magnetic field.