Superconducting Dome from Holography

TL;DR

This paper uses holographic methods to identify a superconducting dome in a strongly coupled striped superconductor, characterized by specific chemical potential modulation and order parameter scaling, with mild wavelength dependence.

Contribution

It introduces a holographic model demonstrating a superconducting dome with unique chemical potential modulation and order parameter scaling properties.

Findings

Superconducting dome appears in a strongly coupled striped superconductor model.

Order parameter shows mild dependence on stripe wavelength.

Regime characterized by zero-mean modulating chemical potential and specific scaling dimension.

Abstract

We find a regime in which a strongly coupled striped superconductor features a superconducting dome. This regime is signified by i) a modulating chemical potential that averages to zero, and ii) a superconducting order parameter that has a scaling dimension larger than 3/2 but less than or equal to 3. We also find that in this regime, the order parameter exhibits a mild dependence on the modulation wavelength of the stripe.