Refractive index in generalized superconductors with Born-Infeld electrodynamics

TL;DR

This paper explores how Born-Infeld electrodynamics influences negative refraction and optical properties in generalized superconductors within a holographic framework, revealing tunable parameters that enhance light propagation.

Contribution

It introduces the role of Born-Infeld electrodynamics in controlling negative refraction and optical behavior in holographic superconductors, highlighting the impact of the Born-Infeld parameter.

Findings

Negative Depine-Lakhtakia index in superconducting phase at small frequencies

Greater Born-Infeld corrections expand the frequency and temperature range of negative refraction

Tunable Born-Infeld parameter improves light propagation in the holographic setup

Abstract

We investigate, in the probe limit, the negative refraction in the generalized superconductors with the Born-Infeld electrodynamics. We observe that the system has a negative Depine-Lakhtakia index in the superconducting phase at small frequencies and the greater the Born-Infeld corrections the larger the range of frequencies or the range of temperatures for which the negative refraction occurs. Furthermore, we find that the tunable Born-Infeld parameter can be used to improve the propagation of light in the holographic setup. Our analysis indicates that the Born-Infeld electrodynamics plays an important role in determining the optical properties of the boundary theory.