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arXiv · 1612.03740

Persistent current and zero-energy Majorana modes in a p-wave disordered superconducting ring

Andrea Nava·Rosa Giuliano·Gabriele Campagnano·Domenico Giuliano
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Abstract

We discuss the emergence of zero-energy Majorana modes in a disordered finite-length p-wave one-dimensional superconducting ring, pierced by a magnetic flux $Φ$ tuned at an appropriate value $Φ=Φ_*$. In the absence of fermion parity conservation, we evidence the emergence of the Majorana modes by looking at the discontinuities in the persistent current $I[Φ]$ at $Φ=Φ_*$. By monitoring the discontinuities in $I[Φ]$, we map out the region in parameter space characterized by the emergence of Majorana modes in the disordered ring.

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Andrea Nava, Rosa Giuliano, Gabriele Campagnano, Domenico Giuliano. 2017-04-28. Persistent current and zero-energy Majorana modes in a p-wave disordered superconducting ring. https://doi.org/10.1103/physrevb.95.155449

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