Enhancement of Critical Temperature of a Striped Holographic Superconductor

TL;DR

This paper investigates how stripe order in a strongly coupled superconductor affects its critical temperature, revealing that inhomogeneity can enhance superconductivity through gauge/gravity duality.

Contribution

It demonstrates that inhomogeneity from stripe order increases the critical temperature in a holographic superconductor model, including backreaction effects.

Findings

Inhomogeneity enhances the critical temperature.

Backreaction effects are crucial for accurate modeling.

Stripe order influences superconducting transition temperature.

Abstract

We study the interplay between the stripe order and the superconducting order in a strongly coupled striped superconductor using gauge/gravity duality. In particular, we study the effects of inhomogeneity introduced by the stripe order on the superconducting transition temperature beyond the mean field level by including the effects of backreaction onto the spacetime geometry in the dual gravitational picture. We find that inhomogeneity \emph{enhances} the critical temperature relative to its value for the uniform system.