Shedding light on topological superconductors

K. H.A. Villegas, V. M. Kovalev, F. V. Kusmartsev, I. G. Savenko

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


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.

Original languageBritish English
Article number064502
JournalPhysical Review B
Issue number6
StatePublished - 7 Aug 2018


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