Strongly-Coupled Anisotropic Gauge Theories and Holography in 5D Einstien-Gauss-Bonnet Gravity

TL;DR

This paper explores how higher derivative gravity influences strongly coupled, anisotropic gauge theories using holography, revealing effects on thermodynamics, chaos, and quark potential in a 5D Einstein-Gauss-Bonnet framework.

Contribution

It introduces a 5D Einstein-Gauss-Bonnet-Axion-Dilaton model to study anisotropic gauge theories and analyzes their thermodynamics, chaos, and quark potential effects.

Findings

Black brane solutions exhibit phase transitions influenced by theory parameters.

Butterfly velocity in IR saturates and can exceed conformal bounds.

Imaginary part of heavy quark potential is computed in the Gauss-Bonnet background.

Abstract

In this paper, we study uncharged, non-conformal, and anisotropic systems with strong interactions using the gauge-gravity duality by considering Einstein-Quadratic-Axion-Dilaton action in five dimensions. In fact, we would like to gain insight into the influence of higher derivative gravity on the QCD system. At finite temperature, we obtain an anisotropic black brane solution to a 5D Einstein-Gauss-Bonnet-Axion-Dilaton system. The system has been investigated and the effect of the parameter of theory has been considered. The blackening function supports the thermodynamical phase transition between small/large and AdS/large black brane for suitable parameters. We also study transport and diffusion properties and observe in particular that the butterfly velocity that characterizes both diffusion and growth of chaos transverse to the anisotropic direction saturates a constant value in the IR which can exceed the bound given by the conformal value. We also determine the imaginary part of the heavy quark potential in a strongly coupled plasma dual to Gauss-Bonnet gravity.