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, 300nm device are reduced by a factor of four in a long, 900nm device. In addition, subgap conductance distributions are investigated, and correlations between the left and right distributions are identified based on their mutual information.
@article{arxiv.1908.05549,
title = {End-to-end correlated subgap states in hybrid nanowires},
author = {G. L. R. Anselmetti and E. A. Martinez and G. C. Ménard and D. Puglia and F. K. Malinowski and J. S. Lee and S. Choi and M. Pendharkar and C. J. Palmstrøm and C. M. Marcus and L. Casparis and A. P. Higginbotham},
journal= {arXiv preprint arXiv:1908.05549},
year = {2019}
}