Observation of Conductance Quantization in InSb Nanowire Networks
Elham M.T. Fadaly (Kavli institute of nanoscience Delft, TU Delft - QuTech Advanced Research Centre, TU Delft - QRD/Kouwenhoven Lab, Eindhoven University of Technology)
Hao Zhang (TU Delft - QuTech Advanced Research Centre, Kavli institute of nanoscience Delft, TU Delft - QRD/Kouwenhoven Lab)
Sonia Conesa-Boj (Kavli institute of nanoscience Delft, TU Delft - QN/Conesa-Boj Lab, TU Delft - QuTech Advanced Research Centre)
Diana Car (Eindhoven University of Technology, TU Delft - QRD/Kouwenhoven Lab, Kavli institute of nanoscience Delft, TU Delft - QuTech Advanced Research Centre)
Önder Gül (Kavli institute of nanoscience Delft, TU Delft - QuTech Advanced Research Centre, TU Delft - QRD/Kouwenhoven Lab)
Sébastien R. Plissard (Eindhoven University of Technology)
Roy L.M. Op Het Veld (TU Delft - QuTech Advanced Research Centre, TU Delft - QRD/Kouwenhoven Lab, Eindhoven University of Technology, Kavli institute of nanoscience Delft)
Sebastian Kölling (Eindhoven University of Technology)
Leo P. Kouwenhoven (TU Delft - QuTech Advanced Research Centre, TU Delft - QRD/Kouwenhoven Lab, Kavli institute of nanoscience Delft, Microsoft Quantum Lab Delft)
Erik P.A.M. Bakkers (Kavli institute of nanoscience Delft, TU Delft - QuTech Advanced Research Centre, TU Delft - QN/Bakkers Lab, Eindhoven University of Technology)
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Abstract
Majorana zero modes (MZMs) are prime candidates for robust topological quantum bits, holding a great promise for quantum computing. Semiconducting nanowires with strong spin orbit coupling offer a promising platform to harness one-dimensional electron transport for Majorana physics. Demonstrating the topological nature of MZMs relies on braiding, accomplished by moving MZMs around each other in a certain sequence. Most of the proposed Majorana braiding circuits require nanowire networks with minimal disorder. Here, the electronic transport across a junction between two merged InSb nanowires is studied to investigate how disordered these nanowire networks are. Conductance quantization plateaus are observed in most of the contact pairs of the epitaxial InSb nanowire networks: the hallmark of ballistic transport behavior.
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