Running coupling constant at finite chemical potential and magnetic field from holography

Abstract

According to the gauge/gravity duality, we use an Einstein-Maxwell-dilaton(EMD) model to study the running coupling constant at finite chemical potential and magnetic field. First, we calculate the effect of temperature on the running coupling constant and find the results are in consistent with lattice qualitatively. Subsequently, we calculate the effect of chemical potential and magnetic field on running coupling. It is found that the chemical potential and magnetic field both suppress the running coupling constant, however, the effect of magnetic field is slightly larger than chemical potential for a fixed temperature. Compared with the confinement phase, the magnetic field has a large influence on the running coupling in the deconfinement phase.

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Cited by in corpus (7)

• Magnetic catalysis and diamagnetism from pion fluctuations
• Thermodynamics and energy loss in D dimensions from holographic QCD model
• String breaking and running coupling of $\mathrm{Q}\bar{\mathrm{Q}}$ in a rotating media from holography
• Interplay of magnetic field and chemical potential induced anisotropy and frame dependent chaos of a $Q\bar{Q}$ pair in holographic QCD
• Spectral function for pions in magnetic field
• Probing Quarkonium Diffusion in a Magnetized Quark-Gluon Plasma
• Chiral Condensation and Chiral Phase Diagram under Combined Rotation and Chemical Potential in Holographic QCD