Topological Single Electron Pumping Assisted by Majorana Fermions

Abstract

Single electron pumping based on the topological property of Majorana fermions (MFs) is proposed. The setup consists of a quantum dot and four nano topological superconductors (TSs) connected by constriction junctions, with an additional vortex located in the loop of TSs. Operation is performed by gate voltages at constriction junctions. Simulations with Bogloliubov-de Gennes equation demonstrate successfully quantum protection during switching operation.

5 pages, 4 figures

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Cited by in corpus (2)

• Supersymmetry in Closed Chains of Coupled Majorana Modes
• Hexagonal warping effect to Majorana zero modes at ends of superconducting vortex line in doped 3D strong topological insulators