Coulomb blockade of Majorana fermion induced transport
A. Zazunov, A. Levy Yeyati, R. Egger
TL;DR
This paper investigates how Coulomb charging influences electron transport in a topological superconductor hosting Majorana bound states, providing a detailed theoretical analysis of nonlinear current-voltage behavior.
Contribution
It introduces a Keldysh functional integral framework to analyze Coulomb effects in Majorana-based transport, offering new insights into nonlinear conductance under weak Coulomb blockade.
Findings
Derived the nonlinear current-voltage relation for Majorana systems
Established a Keldysh functional integral approach for Coulomb effects
Provided detailed theoretical predictions for experimental observations
Abstract
We study Coulomb charging effects for transport through a topologically nontrivial superconducting wire, where Majorana bound states are present at the interface to normal-conducting leads. We construct the general Keldysh functional integral representation, and provide detailed results for the nonlinear current-voltage relation under weak Coulomb blockade conditions.
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