https://doi.org/10.1140/epjc/s10052-018-5729-9
Regular Article - Theoretical Physics
Refractive index in generalized superconductors with Born–Infeld electrodynamics
Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education, Synergetic Innovation Center for Quantum Effects and Applications, and Department of Physics, Hunan Normal University, Changsha, 410081, Hunan, China
* e-mail: hwyu@hunnu.edu.cn
Received:
17
December
2017
Accepted:
12
March
2018
Published online:
21
March
2018
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.
© The Author(s), 2018
