Topological Single Electron Pumping Assisted by Majorana Fermions
Qi-Feng Liang, Zhi Wang, Xiao Hu
TL;DR
This paper proposes a topological single electron pump leveraging Majorana fermions, utilizing a quantum dot and superconductors, with simulations showing quantum protection during operation.
Contribution
It introduces a novel topological electron pumping scheme based on Majorana fermions with demonstrated quantum protection features.
Findings
Successful simulation of quantum protection during switching
Operation controlled by gate voltages at junctions
Potential for robust single-electron control
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.
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