Holographic model of the S^{+/-} multiband superconductor

TL;DR

This paper develops a holographic model for S± multiband superconductors, aiming to explain their unique properties and interband interactions, with calculations of electric AC conductivity.

Contribution

It introduces a novel holographic framework for S± multiband superconductors, capturing sign-changing order parameters and interband effects.

Findings

Model successfully reproduces sign-changing order parameter.

Calculates AC conductivity revealing interband interaction effects.

Provides insights into iron-based superconductor behavior.

Abstract

We construct the holographic model of an $S^\pm$ multiband superconductor. This system is a candidate to explain the anomalous features of the iron-based superconductors (e.g. LaFeAsO, BFe2As2, and other pnictides and arsenides). We study the framework, which allows formation of the sign-interchanging order parameter. We also calculate the electric AC conductivity and study its features, related to the interband interaction.