Signatures of Majorana fermions in topological insulator Josephson junction devices
Benjamin J. Wieder, Fan Zhang, C. L. Kane
DOI 10.1103/PhysRevB.89.075106 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We study theoretically the electrical current and low-frequency noise for a linear Josephson junction structure on a topological insulator, in which the superconductor forms a closed ring and currents are injected from normal regions inside and outside the ring. We find that this geometry offers a signature for the presence of gapless one-dimensional Majorana fermion modes that are predicted in the channel when the phase difference φ, controlled by the magnetic flux through the ring, is π. We show that for low temperature the linear conductance jumps when φ passes through π, accompanied by nonlocal correlations between the currents from the inside and outside of the ring. We compute the dependence of these features on temperature, voltage, and linear dimensions, and discuss the implications for experiments.
Similar papers
Anomalous supercurrent from Majorana states in topological insulator Josephson junctions
similarity 0.94Andrew C. Potter & Liang Fu
Source status unknown — claims are unverified
Signatures of Majorana Fermions in Topological Insulator Josephson Junction Devices
similarity 0.94Benjamin J. Wieder et al. · 2013 · arXiv:1302.2113
Source status unknown — claims are unverified
Differentiating Majorana from Andreev bound states in a superconducting circuit
similarity 0.94Konstantin Yavilberg et al.
Source status unknown — claims are unverified
Quasiparticle poisoning in trivial and topological Josephson junctions
similarity 0.92Aleksandr E. Svetogorov et al.
Source status unknown — claims are unverified
Symmetry Protected Josephson Supercurrents in Three-Dimensional Topological Insulators
similarity 0.92Sungjae Cho et al. · 2012 · arXiv:1209.5830
Source status unknown — claims are unverified
Josephson effect in topological superconducting rings coupled to a microwave cavity
similarity 0.92Olesia Dmytruk et al.
Source status unknown — claims are unverified