End-to-end correlated subgap states in hybrid nanowires

TY - JOUR

T1 - End-to-end correlated subgap states in hybrid nanowires

AU - Anselmetti, G. L. R.

AU - Martinez, E. A.

AU - Menard, G. C.

AU - Puglia, D.

AU - Malinowski, F. K.

AU - Lee, J. S.

AU - Choi, S.

AU - Pendharkar, M.

AU - Palmstrom, C. J.

AU - Marcus, C. M.

AU - Casparis, L.

AU - Higginbotham, A. P.

N1 - [Qdev]

PY - 2019/11/12

Y1 - 2019/11/12

N2 - 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-nm device are reduced by a factor of 4 in a long, 900-nm device. In addition, subgap conductance distributions are investigated, and correlations between the left and right distributions are identified based on their mutual information.

AB - 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-nm device are reduced by a factor of 4 in a long, 900-nm device. In addition, subgap conductance distributions are investigated, and correlations between the left and right distributions are identified based on their mutual information.

U2 - 10.1103/PhysRevB.100.205412

DO - 10.1103/PhysRevB.100.205412

M3 - Journal article

SN - 2469-9950

VL - 100

JO - Physical Review B

JF - Physical Review B

IS - 20

M1 - 205412

ER -