Microwave response of a chiral Majorana interferometer
Abstract
We consider an interferometer based on artificially induced topological superconductivity and chiral 1D Majorana fermions. The (non-topological) superconducting island inducing the superconducting correlations in the topological substrate is assumed to be floating. This allows probing the physics of interfering Majorana modes via microwave response, i.e., the frequency dependent impedance between the island and the earth. Namely, charging and discharging of the island is controlled by the time-delayed interference of chiral Majorana excitations in both normal and Andreev channels. We argue that microwave measurements provide a direct way to observe the physics of 1D chiral Majorana modes.
Keywords
Cite
@article{arxiv.2102.03220,
title = {Microwave response of a chiral Majorana interferometer},
author = {Dmitriy S. Shapiro and Alexander D. Mirlin and Alexander Shnirman},
journal= {arXiv preprint arXiv:2102.03220},
year = {2021}
}
Comments
11 pages, 5 figures; the enhanced version (supplementary materials incorporated into the main text, appendix added); resubmitted to PRB