Evidence of Majorana Zero Modes in Josephson Trijunctions

Abstract

In search of fault-tolerant topological quantum computation (TQC), zero-bias conductance peak as a necessary signature of Majorana zero modes (MZMs) has been observed in a number of solid-state systems. Here, we present the signature of MZMs from a phase-sensitive experiment on Josephson trijunctions constructed on the surface of three-dimensional topological insulators. We observed that the minigap at the center of the trijunction is protected to close over extended regions in phase space, supporting in principle the Majorana phase diagram proposed by Fu and Kane in 2008. Our study paves the way for further braiding MZMs and exploring TQC on a scalable two-dimensional platform.

arXiv comment6 pages, 4 figures

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Cited by in corpus (16)

• Microwave Spectroscopy Reveals the Quantum Geometric Tensor of Topological Josephson Matter
• Fusion of Majorana Bound States with Mini-Gate Control in Two-Dimensional Systems
• Second Chern Number and Non-Abelian Berry Phase in Topological Superconducting Systems
• Ground-state quantum geometry in superconductor-quantum dot chains
• Magnitude and Spatial Distribution Control of the Supercurrent in Bi2O2Se-Based Josephson Junction
• Cooper-pair transistor as a minimal topological quantum circuit
• Crystalline Anisotropic Topological Superconductivity in Planar Josephson Junctions
• Experimental review on Majorana zero-modes in hybrid nanowires
• Thermal signature of Majorana fermions in Josephson junction
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• Reveal the non-local coherent nature from a dissipative Majorana teleportation
• Circulator function in a Josephson junction circuit and braiding of Majorana zero modes
• Field-Programmable Topological Array: Framework and Case-Studies
• Full tomography of topological Andreev bands in graphene Josephson junctions
• Boundary-induced Majorana coupling in a planar topological Josephson junction
• Gap reopening as a possible signature of coupling between Majorana zero modes in Sn-(Bi,Sb)2(Te,S)3-based Josephson trijunctions