Black Holes in Cascading Theories: Confinement/Deconfinement Transition and other Thermal Properties

TL;DR

This paper provides numerical evidence for a phase transition between different cascading background solutions in string theory, analyzing thermal properties like viscosity, drag force, and coupling behavior.

Contribution

It introduces a new black hole solution in cascading theories and explores its thermal properties, highlighting a confinement/deconfinement transition in these models.

Findings

Identified a transition between Klebanov-Strassler background and black hole solution.

Analyzed the running coupling constant in the new background.

Measured viscosity to entropy ratio and drag force in the thermal phase.

Abstract

We present numerical evidence for a transition between the Klebanov-Strassler background and a solution describing a black hole in the class of cascading solutions in the chirally restored phase. We also present a number of properties of this solution, including the running of the coupling constant, the viscosity to entropy ratio and the drag force on a quark moving in this background.