2021/02/28 by D. S. Shapiro, Dmitriy S. Shapiro, A. D. Mirlin +2
Physics and Astronomy · #Condensed matter physics #Dirac fermion #Fermion #Interference (communication) #Interferometry #MAJORANA #Majorana equation #Microwave #Physics #Quantum Mechanics and Non-Hermitian Physics #Quantum many-body systems #Quantum mechanics #Superconductivity #Topological Materials and Phenomena #Topology (electrical circuits) #cond-mat.mes-hall #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.104.035434
published as Phys. Rev. B 104, 035434 (2021) · 11 pages, 5 figures; the enhanced version (supplementary materials incorporated into the main text, appendix added); resubmitted to PRB
arxiv created 2021/07/03 · openalex publication_date 2021/07/28 · arxiv updated 2021/08/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider an interferometer based on artificially induced topological superconductivity and chiral one-dimensional (1D) Majorana fermions. The (nontopological) 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.