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Shedding light on topological superconductors

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journal contribution
posted on 14.08.2018 by K.H.A. Villegas, V.M. Kovalev, Feodor Kusmartsev, I.G. Savenko
We propose an effective optical approach to monitor superconductors in a two-layer superconductor-normal metal structure. Effectively, such a hybrid system represents a resonator, where electrons are strongly coupled with light. We show that the interaction of light with the superconductor is strongly boosted in the presence of the neighboring metal and, as a result, the electromagnetic power absorption of the system is dramatically enhanced. It manifests itself in a giant Fano-type resonance which can uniquely characterize the elementary excitations of the system. Our approach is especially promising for topological superconductors, where Majorana fermions could be revealed and controlled by light.

Funding

V.M.K. has been supported by the Russian Foundation for Basic Research (Project No. 16-02-00565). K.H.V. and I.G.S. acknowledge the support of the Institute for Basic Science in Korea (Project No. IBS-R024-D1).

History

School

  • Science

Department

  • Physics

Published in

Physical review B: Condensed matter and materials physics

Citation

VILLEGAS, K.H.A. ... et al., 2018. Shedding light on topological superconductors. Physical review B: Condensed matter and materials physics, 98: 064502.

Publisher

© American Physical Society

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2018-08-07

Notes

This paper was accepted for publication in the journal Physical review B: Condensed matter and materials physics and the definitive published version is available at https://doi.org/10.1103/PhysRevB.98.064502

ISSN

1098-0121

Language

en

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