End-to-end correlated subgap states in hybrid nanowires

End-to-end correlated bound states are investigated in superconductor-semiconductor hybrid nanowires at zero magnetic field. Peaks in subgap conductance are independently identified from each wire end, and a cross-correlation function is computed that counts end-to-end coincidences, averaging over t...

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Bibliographic Details
Published in:arXiv.org 2019-09
Main Authors: Anselmetti, G L R, Martinez, E A, Ménard, G C, Puglia, D, Malinowski, F K, Lee, J S, Choi, S, Pendharkar, M, Palmstrøm, C J, Marcus, C M, Casparis, L, Higginbotham, A P
Format: Article
Language:English
Subjects:
Cross correlation
Nanowires
Resistance
Online Access:Get full text
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Summary:End-to-end correlated bound states are investigated in superconductor-semiconductor hybrid nanowires at zero magnetic field. Peaks in subgap conductance are independently identified from each wire end, and a cross-correlation function is computed that counts end-to-end coincidences, averaging over thousands of subgap features. Strong correlations in a short, \(300~\mathrm{nm}\) device are reduced by a factor of four in a long, \(900~\mathrm{nm}\) device. In addition, subgap conductance distributions are investigated, and correlations between the left and right distributions are identified based on their mutual information.
ISSN:2331-8422
DOI:10.48550/arxiv.1908.05549