TL;DR
This paper investigates how three different factors influence the KSS bound by analyzing black brane solutions in a modified AdS space with additional matter fields, and computes the shear viscosity to entropy density ratio using fluid-gravity duality.
Contribution
It introduces new black brane solutions in 4D Einstein-Gauss-Bonnet-Yang-Mills theory with string cloud and quintessence, and calculates the shear viscosity to entropy density ratio in this context.
Findings
Black brane solutions with additional matter fields are constructed.
The shear viscosity to entropy density ratio is computed for these solutions.
The effects of the three matters on the KSS bound are analyzed.
Abstract
In this paper we introduce the black brane solutions in AdS space in 4-dimensional (4D) Einstein-Gauss-Bonnet-Yang-Mills theory in the presence of string cloud and quintessence. Shear viscosity to entropy density ratio is computed via fluid-gravity duality, as a transport coefficient for this model.
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