Holographic metals at finite doping

TL;DR

This paper develops a holographic model to describe metallic phases at finite doping, analyzing gauge fluctuations and conductivity, thus advancing understanding of strongly correlated electron systems.

Contribution

It introduces a mapping between doped and undoped holographic models, enabling the study of finite doping effects in holographic metals.

Findings

Electric conductivity depends on doping parameter

Holographic metallic phase characterized at finite doping

Gauge field fluctuations analyzed in the model

Abstract

We construct the electron star solution to the model that was recently proposed by Kiritsis and Li in order to describe a holographic superconductor at finite doping. We do so by finding a map between the doped model and the standard undoped one. In this way, we are able to describe the holographic metallic phase at finite doping. In particular, we study the gauge field fluctuations and find the dependence of the electric conductivity on the doping parameter.